gametogensis, disjunction etc

Question 1

what is gametogenesis

Answer 1

The production of gametes in animals

Question 2

What is spermatogenesis and what does it produce?

Answer 2

Produces sperm
Cytoplasm is divided evenly making four equal sized sperm cells

Question 3

what is oogenesis and what does it produce?

Answer 3

produces egg
Cytoplasm does not divide evenly

Question 4

what happens to cells that don’t receive enough cytoplasm and what are they called?

Answer 4

they die
and are called polar bodies

Question 5

What are sex chromosomes in male and female?

Answer 5

female xx
male xy

Question 6

what is nondisjunction?

Answer 6

Homologous chromosomes that failed to separate during meiosis
Results in one cell having an extra chromosome and one cell missing a chromosome

Question 7

what is trisomy? and example

Answer 7

Where there are 3 chromosomes instead of a homologous pair

example: down syndrome

Question 8

What is monosomy and give an example?

Answer 8

where there is a single chromosome in place of a homologous pair

Example Turner syndrome

Question 9

what is a karyotype?

Answer 9

A picture of all chromosomes arranged by size number and shape

Question 10

How many pairs of autosomes and pairs of sex chromosomes do humans have?

Answer 10

22 pairs of autosomes
One pair of sex chromosomes