Dr Rosato L2

Question 1

chromatin is made of what…?

Answer 1

DNA and protein

Question 2

what are a pair of chromatids called?

Answer 2

sister chromatids

Question 3

what’s the centromere?

Answer 3

middle of chromosome

Question 4

how to find number of chromosomes

Answer 4

count the centromere

Question 5

before duplication, one chromosome = how many molecules?

Answer 5

one

Question 6

after duplication, one chromosome = how many molecules?

Answer 6

two

Question 7

genome=

Answer 7

An organisms entire genetic information

A complete set of genetic material in a haploid set of chromosomes

Question 8

does the number of chromosomes reflect the complexity of the host?

Answer 8

no

Question 9

does the number of chromosomes reflect the amount of DNA that is present in the host?

Answer 9

no

Question 10

what does the symbol C mean

Answer 10

amount of DNA in haploid unreplicated cell

Question 11

how many pairs of chromosomes do humans have

Answer 11

23

Question 12

what the name of chromosomes 1-22 in humans

Answer 12

autosomes

Question 13

23rd pair of chromosomes are called what…?

Answer 13

sex chromosomes

Question 14

how do male and female chromosomes differ?

Answer 14

male have 1X and 1Y in chromosome 23

female have 2X in chromosome 23

Question 15

Chromosomes are numbered from largest to smallest, the largest starting with which chromosome…?

Answer 15

chromosome 1

Question 16

what is a nucleosome and what process is it used in?

Answer 16

octamer of 8 histones used in DNA packaging

Question 17

what are the 8 histones in a nucleosome octamer?

Answer 17

2 of each of the following H2A, H2B, H3 and H4

Question 18

who are the 3 people that first described mitosis?

Answer 18

Lee Hartwell
Paul nurse
Tim hunt