Lecture 1

Question 1

What is a chromosome

Answer 1

DNA and Protein

Question 2

Relaxed form takes place when

Answer 2

Whenever doing job / Replicating

Question 3

Condensed form takes place when

Answer 3

During cell division

Question 4

What happens to chromosome number while replicating

Answer 4

It doubles to maintain number

Question 5

Y chromosome

Answer 5

Male

Question 6

X Chromosome

Answer 6

Female

Question 7

How many chromosomes in humans

Answer 7

46

Question 8

What is contained in a nucleotide

Answer 8

Sugar , Phosphate , Nitrogenous base

Question 9

Name the four nitrogenous bases

Answer 9

Thymine
Adenine
Cytosine
Guanine

Question 10

What is purine

Answer 10

Double ring base

Question 11

What is Pyrimidine

Answer 11

Single ring base

Question 12

What nitrogenous bases are purine

Answer 12

Adenine Guanine

Question 13

What nitrogenous bases are pyrimidine

Answer 13

Thymine Cytosine

Question 14

Base Pairing

Answer 14

Adenine - Thymine

Guanine - Cytosine

Question 15

Why is DNA shape a double helix

Answer 15

Atoms are surrounded by electrons and trying to get away from each other

Question 16

Function of DNA replication

Answer 16

Make a copy

Semiconservative Replication

Question 17

How much of DNA is original and how much is new (For replication)

Answer 17

50 percent

Question 18

Step one of DNA replication

Answer 18

Unzip

Break hydrogen bond , separates strands

Question 19

Step two of DNA replication

Answer 19

DNA polymerase - Puts many units together

Reads nucleotide , brings in compliment and forms hydrogen bond

Question 20

Centromere

Answer 20

Keeps sister chromoties together

Question 21

Kinetochore

Answer 21

Attachment point