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Terms in this set (49)
When does interphase occur?
What occurs during interphase?
Uncoiled stringy DNA is called ____
Human cells have ___ pieces of chromatin?
half of your DNA comes from your ___ and half from your ____
mom and dad
DNA has ___ that determines traits of an organism
The different forms of a gene are called
What are the 2 alleles for fur color in Snurfles and which letters represent those alleles?
______ is when DNA copies itself and it occurs during ______
_______ is made during meiosis. Examples of gametes are _____ and ______
Sperm and eggs
Meiosis occurs in __ divisions, M __ and M __
I and II
List the phases of meiosis I and meiosis II
I- interphase, prophase, metaphase, anaphase, telophase
II- prophase, metaphase, anaphase, telophase
During PI the chromosomes ____ and become ______
Chromosomes that are the same size and have the same genes are called _____
Each half of a replicated chromosome is called
Sister chromatids of a chromosome are ____
The nucleus _____ duding PI
homologous chromosomes pair up during PI to form a _____
During MI the tetrads line up in the ____ of the cell.
The homologous chromosomes split up and move toward the opposite ends of the cell during _______
____ independent cells begin to form during _____
_____ is the division of the cytoplasm to make 2 cells
The 2 new cells that are formed from Meiosis 1 are ____ because they have half of the chromosomes of the original cell that started Meiosis.
At the start of Meiosis 1 you had 1 _____ cell
Meiosis II must take place because each of our new cells still has too much _____.
The nucleus ______ during prophase II
In Metaphase II the chromosomes line up single file down the ____ of the cell.
In ____ the sister chromatids split up
In telophase II, ___ ______ daughter cells are being formed. They are called _____
Each newly formed cell will form a _____ around the chromosomes.
The chromosomes ____ to form _______
________ occurs at the same time at Telophase II
At the end of Meiosis II you have made ___ _____ gametes.
If the gametes are produced by a male, they are called _____.
If the gametes are produced by a female, they cal called ____ or ___
Eggs or ova
The ____ square is a tool that is used to predict the possible offspring of a genetic cross.
The letters on a Punnett square actually represent possible ____
When sperm and egg join it is called ____
A fertilized egg is called a _____
A _____ is the genetic makeup of an organism
What are examples of genotypes?
GG, Gg, gg
A _____ is the characteristic or appearance of the organism.
What are examples of phenotypes?
Fur color, hair, eyes, and freckles
Dominant alleles are represented by ____ letters
Recessive alleles are represented by ____ letters
______ alleles will show in your phenotype even if it only has one copy
For recessive traits to show in the phenotype the snurfle will need __ copies of the gene
_____ means an organism has 2 copies of the same allele in its genotype
_____ means an organism has 2 copies of the different alleles in its genotype
Why do most leaves appear green?
How do animal cells undergo cytokinesis
What are the functions of lysozomes?
What are the 2 major groups of helminths?
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