Meisos

Question 1

What is genetic code?

Answer 1

Sequence of the bases in a gene?

Question 2

What are the 3 differences between Meiosis and Mitosis?

Answer 2

1. meiosis = 2 stages, 2 successive divisions
2. chromosomes arrange in homologous pairs
3. the 4 daughter cells of meiosis aren’t necessarily identical, have 1/2 chromosomes present in original parent cell

Question 3

What is diploid and haploid?

Answer 3

diploid: in humans, 46 chromosomes, 2 sets, written as 2n

haploid, 23 chromosomes, written as n

Question 4

When does fertilization occur and what does is form?

Answer 4

when 2 gametes fuse, they form a diploid zygote

Question 5

What’s an homologous pair?

Answer 5

a pair of chromosomes with similar lengths, shapes and carry genes controlling the same traits (ex: eye colour, one blue, one brown)