Ch 8 Cell Reproduction (7th Grade)

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38 terms

mitosis

the process in which the nucleus divides to form two identical nuclei (production of body cells)

46

number of chromosomes in a normal human body cell

23

number of chromosomes in a normal human sex cell

23

number of hours it takes for interphase to occur

1

number of hours it takes mitosis to occur

24

number of hours it takes the whole cell cycle to occur

chromosome

a structure in the nucleus that contains hereditary material

interphase

the first part of the cell cycle. The cell grows, and DNA is copied

prophase

phase of mitosis in which the nuclear membrane disappears and the centrioles move to the poles

metaphase

phase of mitosis in which the chromosomes line up in the center of the cell

anaphase

phase of mitosis in which the chromosomes are pulled apart toward the poles by spindle fibers

telophase

phase of mitosis in which the nucleus reforms

cytokinesis

The process of the cytoplasm splitting

zygote

the first cell formed when male and female sex cells join together

budding

a new organism is grow from the body of a parent

regeneration

the process of regrowing lost or damaged body parts

sexual

type of reproduction when two sex cells join together

diploid

when a cell has a full set of chromosomes in pairs

haploid

when a cell has half a full set of chromosomes in pairs

meiosis

the process of producing sex cells

DNA

the code stores as a chemical in hereditary material
(deoxyribonucleic acid)

gene

section of dna that is coded for a specific protein

watson and crick

two scientist that discovered the shape of DNA

double helix

the name used to describe the shape of DNA

RNA

carries the code for making proteins from the nucleus to the ribosome

double

DNA is __________ stranded

single

RNA is __________ stranded

thymine

adenine always pairs with

guanine

cytosine always pairs with

ribosome

what part of the cell makes proteins

trna

type of rna that carries amino acids to the ribosome to make protiens

mrna

type of rna that carries the message for making proteins from the nucleus to the ribosome

mutation

a permanent change or mistake in the DNA

deoxyribose

the sugar found in DNA

ribose

the sugar found in RNA

replication

process of copying DNA from DNA

transcription

the process of making RNA from DNA

translation

the process of making protiens from RNA

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