Chapter 14-1: Human Heredity Flashcards
1
Q
What are homologous chromosomes?
A
Paired chromosomes
2
Q
What is an autosome?
A
Are the remaining 44 chromosomes
3
Q
What are sex chromosomes?
A
Two of the 46 chromosomes
4
Q
What is a gamete?
A
Cell (egg or sperm)
5
Q
What is a zygote?
A
Fertilized cell
6
Q
How many chromosomes do you have in each cell of your body?
A
46
7
Q
How many homologous chromosomes?
A
23
8
Q
How many chromosomes did you get from your mom and dad?
A
23
9
Q
What chromosome combinations make a girl?
A
XX
10
Q
What chromosome combinations make a boy?
A
XY
11
Q
Who plays a key role in determining the gender of a baby? And why?
A
The dad because of the Y chromosome
12
Q
What is the probability for having either boy or girl?
A
50%
13
Q
Why aren’t you identical to your parents or siblings?
A
Because of crossing over
14
Q
What gametes were involved to make you?
A
Egg and sperm
