Chapter 7.1 and 8

Question 1

What is DNA composed of?

Answer 1

a 5 sugar deoxyribose a phophate and a nitrogonous base

Question 2

What suagr is in DNA

Answer 2

Deoxyribose

Question 3

What 4 nito bases are found in DNA

Answer 3

adenine guanine cytosine thymine

Question 4

What is the origin of replication

Answer 4

The split in between dna

Question 5

What is the replication bubble

Answer 5

The multiple splits in a DNA strand

Question 6

What is replicatin fork?

Answer 6

the actual split of DNA

Question 7

The stages of the cell cycle

Answer 7

Interphase- G1 S G2 then Mitosis- prophase metaphase anaphase then telophase

Question 8

Function of helicase enzyme

Answer 8

It unzips the DNA

Question 9

Function of DNA polytmerase

Answer 9

Proof reads DNA

Question 10

function of ligase enzyme

Answer 10

The glue, they bond parent strand to complimentary strand

Question 11

What is an haploid

Answer 11

A cell that contains a single set of chromosomes

Question 12

What is a diploid

Answer 12

A cell having two chromosomes

Question 13

What human cells are diploid

Answer 13

All cells besides sex cells

Question 14

What are sister chromatides

Answer 14

2 identical chromosomes connected by a centromere

Question 15

What is a centromere

Answer 15

The velcro they connect the two sister chromatides

Question 16

What happens to chromosomes during prophase

Answer 16

They condense and become visible

Question 17

What happens to chromosomes during metaphase

Answer 17

They line up in the middle of the cell

Question 18

What happends to chromosomes during anaphase

Answer 18

They split and go to opposite poles

Question 19

What happeneds to the mitotic spindle during telophase?

Answer 19

it disassembles

Question 20

What happens during telophase

Answer 20

A new nucleus forms

Question 21

What function is the mitotic spindle

Answer 21

They help coordinate the movement of the chromosomes