Zoology Exam6 Slides 3

Question 1

Quaternary structure

Answer 1

Chromosomes are condensed

Question 2

Mitosis- nuclear division:

Answer 2

Chromatin condensed as chromosomes

Question 3

A species has a characteristic number of chromosomes. What is it called?

Answer 3

Karyotype

Question 4

Number of sets of chromosomes in the cells of an organism is called?

Answer 4

Ploidy

Question 5

Count of different numbered chromosomes: members of one set.

Answer 5

Haploid

Question 6

Each member of a haploid set does what?

Answer 6

Codes for distinct functions in organism

Question 7

What do homologous chromosomes do?

Answer 7

Duplicate haploid sets: one set from each parent.

Question 8

What is a diploid?

Answer 8

2 haploid sets

Question 9

What happens in interphase- gap phase 1?

Answer 9

Cell growth

Longest period

Question 10

What happens in interphase G1/ S checkpoint?

Answer 10

Checks nutrition and growth

Commitment to replicate DNA

Question 11

What happens in Interphase synthesis?

Answer 11

DNA replication

More growth

Question 12

S phase (interphase):

Answer 12

DNA uncondensed chromatin