C4 L1 Sexual Reproduction Flashcards
1
Q
Egg
A
Female sex cell
2
Q
Where does the egg form
A
Ovary
3
Q
Sperm
A
Male sex cell
4
Q
Where does the sperm form
A
Testis
5
Q
Fertilization
A
egg cell and a sperm joined together
6
Q
Zygote
A
The new cell that forms from fertilization
7
Q
2 types of cells
A
Body cells and sex cells
8
Q
Diploid cells
A
Cells that have pairs chromosomes
9
Q
Homologous chromosomes
A
Pairs of chromosomes that have genes for the same traits arranged in the same order
10
Q
Human cells have ___ pairs or ___ total chromosomes
A
23 pairs
46 total
11
Q
Cells that have only __ chromosomes from each pair __ the number
A
One chromosome
1/2 the number
12
Q
Meiosis
A
One diploid cell divides and makes four haploid sex cells
13
Q
There are ___ divisions of the nucleus during meiosis
A
Two
14
Q
In meiosis l
A
Homologous pairs separate
15
Q
Meiosis ll
A
Sister chromatids desperate
