Cell Reproduction Study Guide

question

Mitosis
answer

the reproduction of cells in which they divide into two new cells with the same number of chromosomes and the exact same DNA.
question

46
answer

Mitosis starts with _______ chromosomes
question

46
answer

Mitosis ends with 2 new cells with ______chromosomes
question

Prophase
answer

List the first stage of mitosis
question

Metaphase
answer

List the second stage of mitosis
question

Anaphase
answer

List the third stage of mitosis
question

Telophase
answer

List the fourth stage of mitosis
question

Interphase
answer

the time when cells are growing and developing, but not reproducing
question

spindle fibers
answer

thread like fibers which chromosomes attach
question

centrioles
answer

point where spindle fibers attach
question

chromatid
answer

half of a chromosome
question

centromere
answer

center of a chromosome where 2 chromosomes attach
question

chromosome
answer

2 chromatids joined together
question

body
answer

there are 46 chromosomes in every ____ cell
question

sex
answer

there are 23 chromosomes in every ___ cell
question

prophase
answer

In ____ of mitosis, 46 chromosomes become present, the nuclear membrane disappears, the centrioles move to the poles and spindle fiber form
question

metaphase
answer

In ____ of mitosis, 46 chromosomes line up in the middle of the celll and attach to the spindle fibers
question

anaphase
answer

In ____ of mitosis, 46 chromosomes tear apart into 46 chromatids. 46 chromatids go one way, and 46 chromatids go the other way
question

telophase
answer

In ____ of mitosis, the cell tears into two cells, the centrioles and spindle fibers disappear, the chromatids return to chromatin, the nuclear membrane reforms
question

interphase
answer

during ____ no chromosomes are present, only chromatin, and the body cell grows and develops. But it is NOT reproducing!
question

meiosis
answer

the division of sex cells. It results in 4 new cells with half the number of chromosomes and different DNA.
question

sex
answer

Gametes are ____ cells
question

23
answer

Sex cells have ____ chromosomes in each cell
question

zygote
answer

What forms when a sperm and an egg unite during fertiliztion
question

46
answer

The zygote has ___ chromosomes
question

haploid number
answer

when the offspring has half the number of chromosomes as the parent
question

diploid number
answer

when the offspring has the same number of chromosomes as the parent
question

46
answer

the diploid number for 46 is ____
question

23
answer

the haploid number for 46 is ___
question

prophase 1
answer

In _____ of meiosis, 23 chromosome pairs become visible, centrioles and spindle fibers form and the nuclear membrane disappears
question

metaphase 1
answer

In _____ of meiosis, the 23 pairs of chromosomes line up in the middle at the equator
question

anaphase 1
answer

In ____ of meiosis, the 23 chromosome pairs split into 23 individual chromosomes…23 go one way and 23 go the other way
question

telophase 1
answer

In ____ of meiosis, the cell tears into two. The spindle fibers and centrioles disappear, the chromosomes return to chromatin, and the nuclear membrane reforms
question

metaphase 2
answer

In ____ of meiosis, the 23 chromosomes line up in the middle at the equator.
question

anaphase 2
answer

In ____ of meiosis, the 23 chromosomes split into 23 chromatids. 23 chromatids go one wya and 23 chromatids go the other way.
question

prophase 2
answer

In ___ of meiosis, the 23 chromosomes are visible, the spindle fibers and centrioles appear, and the nuclear membrance disappears.
question

telophase 2
answer

In ____ of meiosis, the cells tear into two. The spindle fibers and centrioles disappear, the chromatids turn into chromatin and the nucleus reforms. 4 new cells are created …new eggs in girls and new sperms in guys
question

DNA
answer

the chemical code that makes up chromosomes. It gives directions as to what traits an organism will have.
question

adenine & thymine; cytosine & guanine
answer

the four nitrogen bases of DNA and tell which bases join together.
question

The sides of DNA ladder are made of __ and __.
answer

sugar and phosphates
question

THe steps of the ladder are made of
answer

4 nitrogen
question

__ are section of DNA on a chromosomes that control traits.
answer

Gene

Get instant access to
all materials

Become a Member