Study sets matching "reproduction meiosis"

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Study sets matching "reproduction meiosis"

58 terms
Meiosis and Reproduction
Meiosis 1
Meiosis 2
Tetrad
Crossing Over
First steps of Meiosis which results in two diploid cells
Second steps of Meiosis which results in four haploid cells
formed by four chromatids from a pair of homologous chromosomes
Occurs in Meiosis I, where non sister chromosomes swap geneti…
Meiosis 1
First steps of Meiosis which results in two diploid cells
Meiosis 2
Second steps of Meiosis which results in four haploid cells
15 terms
Meiosis and reproduction
asexual reproduction
sexual reproduction
diploid
haploid
reproduction that does not need two parents. offspring geneti…
reproduction that requires two parents. combining gentic info…
containing two complete sets of chromosomes one from each par…
An organism or cell having only one complete set of chromosom…
asexual reproduction
reproduction that does not need two parents. offspring geneti…
sexual reproduction
reproduction that requires two parents. combining gentic info…
26 terms
Meiosis & Sexual Reproduction
meiosis
haploid
diploid
gametes
nuclear division that results in cells with half the chromoso…
the number of chromosome pairs in a species
the number of chromosomes in a non-gamete cell
reproductive cells
meiosis
nuclear division that results in cells with half the chromoso…
haploid
the number of chromosome pairs in a species
15 terms
reproduction and meiosis
sexual reproduction
egg
sperm
fertilization
is a type of reproduction
forms in an ovary.
forms in a testis
an egg cell and a sperm
sexual reproduction
is a type of reproduction
egg
forms in an ovary.
Reproduction & Meiosis
What are the pros and cons for asexual…
What 3 things is genetic variability d…
How many pairs of chromosomes do human…
Describe each of the stages of meiosis.
...
...
23 pairs or 46 total chromosomes.
PROPHASE I: The cell gets the signal to divide and copies the…
What are the pros and cons for asexual…
...
What 3 things is genetic variability d…
...
36 terms
Meiosis and Reproduction
Asexual Reproduction
Crossing-Over
Diploid
Egg
A form of reproduction that involves a single parent and resu…
The exchange of genetic material between homologous chromosom…
Having two of each type of chromosome
Female gamete
Asexual Reproduction
A form of reproduction that involves a single parent and resu…
Crossing-Over
The exchange of genetic material between homologous chromosom…
Meiosis and reproduction
Function {meiosis}
Why? {meiosis}
How? {meiosis}
Homologous chromosomes
Make sex cells (sperm and egg) and half the number of chromos…
Fertilization combines sex cells from two parents (sexual rep…
One cell becomes 4, two cellular divisions
A pair of chromosomes, same size, one from mom and one from dad
Function {meiosis}
Make sex cells (sperm and egg) and half the number of chromos…
Why? {meiosis}
Fertilization combines sex cells from two parents (sexual rep…
Meiosis and reproduction
Independent assortment
Crossing over
Random fertilization
Mitosis
There are endless combinations of how the chromosomes can be…
It mixes up the parent genes
Millions of sperm are produced but only one fertilizes egg
Duplicate cells,one cell division, 2 daughter cells, diploid…
Independent assortment
There are endless combinations of how the chromosomes can be…
Crossing over
It mixes up the parent genes
133 terms
Meiosis and Reproduction
Somatic cells
the name for the normal amount of chro…
gametes
the name for half the number of chromo…
body cells that contain the normal number of chromosomes
diploid
the sex cells and contain only 1/2 the normal number of chrom…
haploid
Somatic cells
body cells that contain the normal number of chromosomes
the name for the normal amount of chro…
diploid
14 terms
Reproduction and Meiosis: Asexual Reproduction
Reproduction
Asexual Reproduction
Why is Asexual Good?
Why is Asexual Bad?
Making new organisms from other organisms.
All genetic information, DNA, comes from 1 parent.
No partner is needed which makes it easier.
No genetic diversity- not good for the health of a population.
Reproduction
Making new organisms from other organisms.
Asexual Reproduction
All genetic information, DNA, comes from 1 parent.
Meiosis and Reproduction
Meiosis
Fertilization
Zygote
Gamete
A process in which cells' chromosomes are divided in half in…
When a male sperm cell joins with a female egg cell
Male and female sex cells combined into one, with a complete…
A sex cell
Meiosis
A process in which cells' chromosomes are divided in half in…
Fertilization
When a male sperm cell joins with a female egg cell
Reproduction and Meiosis
Asexual Reproduction
Sexual Reproduction
Disadvantages of Sex
Advantages of Sex
Generates genetically identical offspring.
Generates genetically unique offspring. Can be monoecious (he…
Complicated, requires more time, time wasted in competition,…
Recombination during meiosis maintains genetic variability an…
Asexual Reproduction
Generates genetically identical offspring.
Sexual Reproduction
Generates genetically unique offspring. Can be monoecious (he…
13 terms
Reproduction And Meiosis
Asexual Reproduction
Crossing-over
Diploid
Fertilization
A reproductive process that involves only one parent and prod…
process in which homologous chromosomes exchange portions of…
(genetics) an organism or cell having two sets of chromosomes…
Process in sexual reproduction in which male and female repro…
Asexual Reproduction
A reproductive process that involves only one parent and prod…
Crossing-over
process in which homologous chromosomes exchange portions of…
Meiosis & Reproduction
What is meiosis?
How many cell divisions occur during m…
What does meiosis make?
What do chromosome pairs have to durin…
when the number of chromosomes is reduced by half to form sex…
2
gametes (sex cells)
split
What is meiosis?
when the number of chromosomes is reduced by half to form sex…
How many cell divisions occur during m…
2
Meiosis and reproduction
Asexual
Sexual
Asexual
Sexual
1 parent... Offspring genetically identical
2 parents... Offspring genetically unique
Easier, doesn't waste time and energy trying to find a mate
Genetic variation ... Adjusts to changes in environment
Asexual
1 parent... Offspring genetically identical
Sexual
2 parents... Offspring genetically unique
25 terms
Meiosis/Reproduction
Prophase 1
Metaphase 1
Anaphase 1
Telophase 1
Pairing of homologous chromosomes occurs,... Crossing over,... Nucl…
Chromosomes centromeres attach to spindle fibers,... Homologous…
Homologous chromosomes separate and move to opposite poles of…
The spindles break down,... Chromosomes uncoil and form two nucl…
Prophase 1
Pairing of homologous chromosomes occurs,... Crossing over,... Nucl…
Metaphase 1
Chromosomes centromeres attach to spindle fibers,... Homologous…
20 terms
Reproduction and Meiosis
asexual reproduction
sexual reproduction
mitosis
somatic cells
reproduction from 1 parent that produces offspring that are g…
reproduction from 2 parents to produce unique offspring
the cell division process occurring in somatic (body cells) t…
type of cells that divide by mitosis e.g. repair damage
asexual reproduction
reproduction from 1 parent that produces offspring that are g…
sexual reproduction
reproduction from 2 parents to produce unique offspring
24 terms
Meiosis and reproduction
Haploid
Diploid
Mitosis
Meiosis
Containing a single set of unpaired chromosomes
Containing two sets of chromosomes
Results in 2 diploid cells (parent+new clone)
Results in :... Male- 4 haploid daughter cells (each sperm have…
Haploid
Containing a single set of unpaired chromosomes
Diploid
Containing two sets of chromosomes
42 terms
Reproduction & Meiosis
Asexual
Sexual
Asexual
Sexual
Single parent splits, buds, or fragments to produce 2 or more…
Union of 2 sex cells- gametes into zygote
Result of mitotic division, no genetic variation, "clones"
Generally 2 parents contributing
Asexual
Single parent splits, buds, or fragments to produce 2 or more…
Sexual
Union of 2 sex cells- gametes into zygote
17 terms
Meiosis & reproduction
What is meiosis?
How many cell divisions occur during m…
What does meiosis make ?
What do chromosome pairs have to do du…
When the number of chromosomes are divided in 1/2 to form the…
2
Sex cells
Take froze the mom and the dad
What is meiosis?
When the number of chromosomes are divided in 1/2 to form the…
How many cell divisions occur during m…
2
34 terms
Meiosis and Reproduction
Meiosis
Meiosis
Gametes
Sperm cells
A process that produces haploid gametes from diploid cells
What process reduces he number of chromosomes to half?
Reproductive cells
What is the male gamete?
Meiosis
A process that produces haploid gametes from diploid cells
Meiosis
What process reduces he number of chromosomes to half?
23 terms
Meiosis and Reproduction
Asexual reproduction
Sexual Reproduction
Binary fission
Parthenogenesis
A single parent passes an exact copy of genetic material to o…
Two parents give genetic material to produce offspring that a…
Asexual cell division
Process in which a female makes a viable egg that grows into…
Asexual reproduction
A single parent passes an exact copy of genetic material to o…
Sexual Reproduction
Two parents give genetic material to produce offspring that a…
24 terms
Reproduction and Meiosis
Asexual Reproduction
Sexual Reproduction
Diploid
Gametes
One parent - offspring is a clone of the parent
Two parents - offspring has combined traits of parents
A cell that contains two types of each chromosome
Sex cells, otherwise known as sperm and egg
Asexual Reproduction
One parent - offspring is a clone of the parent
Sexual Reproduction
Two parents - offspring has combined traits of parents
Reproduction and Meiosis
Meiosis
Crossing Over
Haploid
Diploid
The production of gametes
DNA trading between chromosomes
Result of meiosis; Gametes
Result of mitosis; Somatic Cells
Meiosis
The production of gametes
Crossing Over
DNA trading between chromosomes
16 terms
Meiosis and Reproduction
gamete
zygote
diploid
haploid
the general term for a reproductive cell
a fertilized reproductive cell
a cell with a full set of chromosomes
a cell with a half set of chromosomes
gamete
the general term for a reproductive cell
zygote
a fertilized reproductive cell
19 terms
Reproduction and Meiosis
Asexual Reproduction
Sexual Reproduction
3 types of asexual reproduction
Sexual Reproduction
1 parent cell, genetic material is identical to parent cell
2 parent cells, genetic material =half from each parent
Fission in bacteria; Budding in yeast; Regeneration in sponge…
2 sex cells unite to form a new organism
Asexual Reproduction
1 parent cell, genetic material is identical to parent cell
Sexual Reproduction
2 parent cells, genetic material =half from each parent
62 terms
Reproduction and Meiosis
process by which an organism produces…
to make sure a species can continue
what are the two types of reproduction
new individuals develop from an outgro…
reproductive system
purpose of reproduction
asexual and sexual
budding
process by which an organism produces…
reproductive system
to make sure a species can continue
purpose of reproduction
8 terms
Meiosis and Reproduction
Chromosome Pairing
How many chromosomes does human body h…
Pairs of chromosomes
Meiosis Prophase I (Reduction Division)
method to reduce gene load by one half without loss of inform…
46 chromosomes, 23 pairs
each member of a pair carries a set of genes for the same fun…
during prophase I, condensing chromosomes are organized by th…
Chromosome Pairing
method to reduce gene load by one half without loss of inform…
How many chromosomes does human body h…
46 chromosomes, 23 pairs
22 terms
Meiosis and Reproduction
Interstitial cells
germinal epithelial cells
Luteinizing hormone (LH)
Follicle stimulating hormone (FSH)
Produce testosterone
Make up the wall of the testis
Stimulates testosterone
Stimulates meosis
Interstitial cells
Produce testosterone
germinal epithelial cells
Make up the wall of the testis
Reproduction & Meiosis
Asexual Reproduction
Binary Fission
Fragmentation
Budding
a single parent passes a complete copy of its genetic informa…
similar to mitosis without a nucleus one parent splits into t…
the body breaks down into pieces and each piece can grow into…
new individual split off from existing ones
Asexual Reproduction
a single parent passes a complete copy of its genetic informa…
Binary Fission
similar to mitosis without a nucleus one parent splits into t…
13 terms
Meiosis and Reproduction
What are the eight steps in Meiosis?
How many cell divisions are there?
What is a diploid?
What is a haploid?
Prophase 1, Metaphase 1, Anaphase 1, Telophase 1, Prophase 2,…
two
A cell with a pair of chromosomes
A single form
What are the eight steps in Meiosis?
Prophase 1, Metaphase 1, Anaphase 1, Telophase 1, Prophase 2,…
How many cell divisions are there?
two
Meiosis and Reproduction
Fertilization
Where does the process of fertilizatio…
Haploid
Diploid
Process of sperm joining egg
Fallopian Tubes
1n
2n
Fertilization
Process of sperm joining egg
Where does the process of fertilizatio…
Fallopian Tubes
reproduction - meiosis
produces for haploid cells who's chrom…
duplicates DNA
the chromosomes line up in pairs in th…
pulled apart each new cell only has on…
meiosis
what happens before the cell starts to divide
what happens in the first division in meiosis
what happens to the pairs ( step 3)
produces for haploid cells who's chrom…
meiosis
duplicates DNA
what happens before the cell starts to divide
Reproduction and Meiosis
What is a characterstic that all livin…
How does it benefit?
What is asexual reproduction?
What are examples of unicellular divis…
Reproduction
It only benefits the species
Unicellular division
Binary fission and unicellular budding
What is a characterstic that all livin…
Reproduction
How does it benefit?
It only benefits the species
23 terms
Reproduction and Meiosis
describe two differences between asexu…
What specialized cells are critical to…
what is half of a chromosome called?
how are sister chromatids related?
asexual: requires 1 partner, NO genetic variation ... sexual: re…
Gametes; because they control traits such as gender.
sister chromatid
they are exactly the same
describe two differences between asexu…
asexual: requires 1 partner, NO genetic variation ... sexual: re…
What specialized cells are critical to…
Gametes; because they control traits such as gender.
Science/ Reproduction and Meiosis
Asexual reproduction
Sexual reproduction
Mitosis
Budding
A reproductive process that involves only one parent and prod…
A reproductive process that involves two parents that combine…
A process of nuclear division in eukaryotic cells conventiona…
Asexual reproduction in which a part of the parent organism p…
Asexual reproduction
A reproductive process that involves only one parent and prod…
Sexual reproduction
A reproductive process that involves two parents that combine…
10 terms
Sexual Reproduction and Meiosis
Sexual Reproduction
Egg
Sperm
Fertilization
is the type of reproduction in which the genetic materials fr…
The female sex cell, form in an ovary
The males sex cell, forms in a testis
An egg cell and sperm cell join together
Sexual Reproduction
is the type of reproduction in which the genetic materials fr…
Egg
The female sex cell, form in an ovary
Cell Reproduction (and Meiosis)
Hapliod
Asexual
Sexual
Somatic Cell
Half the chromosomes ... (In humans 23)
1 Parent ... Identical Offspring... Mitosis
2 parents ... Variation in Offspring ... Meiosis
Body Cell ... Asexual
Hapliod
Half the chromosomes ... (In humans 23)
Asexual
1 Parent ... Identical Offspring... Mitosis
13 terms
6.G Meiosis & sexual reproduction
Sexual reproduction
Meiosis
Gametes
Homologous Chromosomes
A form of reproduction that requires each organism to provide…
A type of cellular division that results in 4 genetically uni…
Sex cells (egg and sperm) produced from a somatic germ cells
Chromosomes that code for the same genes (1 from mom, 1 from…
Sexual reproduction
A form of reproduction that requires each organism to provide…
Meiosis
A type of cellular division that results in 4 genetically uni…
18 terms
Meiosis and Reproduction
meiosis
crossing over
independent assortment
sperm
a form of cell division that halves the number of chromosomes…
occurs when portions of a chromatid on one homologous chromos…
the random distribution of homologous chromosomes during meio…
the male gamete
meiosis
a form of cell division that halves the number of chromosomes…
crossing over
occurs when portions of a chromatid on one homologous chromos…
10 terms
Meiosis makes Reproduction Possible
Mitosis
Meiosis
egg
sperm
process of producing more body (somatic) cells
process of producing your reproductive cells or gametes (sex…
female sex cell
male sex cell
Mitosis
process of producing more body (somatic) cells
Meiosis
process of producing your reproductive cells or gametes (sex…
27 terms
Meiosis & Sexual Reproduction
Meiosis
Sexual Reproduction
Chromosome
DNA
A process of cell division in which ONE cell divides into FOU…
A type of reproduction the requires two parents to each contr…
A long thin strand of DNA and proteins that contains all of o…
Deoxyribonucleic Acid. These molecules contain the coded inst…
Meiosis
A process of cell division in which ONE cell divides into FOU…
Sexual Reproduction
A type of reproduction the requires two parents to each contr…
27 terms
Sexual Reproduction and Meiosis
sexual reproduction
meiosis
homologous pairs
Diploid
Reproduction that results from combining genetic material fro…
Type of cell division that results in 4 daughter cells that e…
A pair of chromosomes of the same type, one from each parent.
A cell containing two full sets of chromosomes (one from fath…
sexual reproduction
Reproduction that results from combining genetic material fro…
meiosis
Type of cell division that results in 4 daughter cells that e…
23 terms
Sexual reproduction and Meiosis
Prophase I
Metaphase I
Anaphase I
Telophase I
The first phase of meiosis I. the replicated chromosomes cond…
The second phase of meiosis I. the paired homologous chromsom…
The third phase of meiosis I. During anaphase I the rplicated…
The fourth of meiosis I. the number of chromosoms is now redu…
Prophase I
The first phase of meiosis I. the replicated chromosomes cond…
Metaphase I
The second phase of meiosis I. the paired homologous chromsom…
Meiosis & Sexual Reproduction
Homologous Chromosome
Sister Chromatids
Centromere
Somatic Cell
A couple of homologous chromosomes is a set of one maternal c…
A sister chromatid refers to either of the two identical copi…
The centromere is the part of a chromosome that links sister…
A somatic (Greek: σὠμα/soma = body) or vegetative cell is any…
Homologous Chromosome
A couple of homologous chromosomes is a set of one maternal c…
Sister Chromatids
A sister chromatid refers to either of the two identical copi…
29 terms
Cell Reproduction- Mitosis/Meiosis
Metaphase
Prophase
Anaphase
Telephase
Name this phase:
Name this phase:
Name this phase:
Name this phase:
Metaphase
Name this phase:
Prophase
Name this phase:
35 terms
Biology Mitosis, Meiosis, Reproduction
Meiosis
Diploid
Haploid
Gametes
A type of cell division that reduces the number of chromosome…
A cell that contains 2n number of chromosomes.
A cell with n number of chromosomes. Comes from the Greek wor…
Sex cells that have half the number of chromosomes. Each game…
Meiosis
A type of cell division that reduces the number of chromosome…
Diploid
A cell that contains 2n number of chromosomes.
Biology Mitosis, Meiosis, Reproduction
Meiosis
Diploid
Haploid
Gametes
A type of cell division that reduces the number of chromosome…
A cell that contains 2n number of chromosomes.
A cell with n number of chromosomes. Comes from the Greek wor…
Sex cells that have half the number of chromosomes. Each game…
Meiosis
A type of cell division that reduces the number of chromosome…
Diploid
A cell that contains 2n number of chromosomes.
29 terms
Sexual Reproduction & Meiosis
sexual reproduction
egg
sperm
fertilization
type of reproduction in which the genetic materials from 2 di…
female sex cell, forms in ovary
male sex cell, forms in testis
a process where an egg cell and a sperm cell join together to…
sexual reproduction
type of reproduction in which the genetic materials from 2 di…
egg
female sex cell, forms in ovary
24 terms
Meiosis & Human Reproduction
Sexual Reproduction
egg
sperm
gamete
Cells from two different parents combine to produce a new org…
Female sex cell
Male sex cell
haploid sex cells (sperm & egg)
Sexual Reproduction
Cells from two different parents combine to produce a new org…
egg
Female sex cell
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