Biology 2 (Chapter 10)

Question 1

During The 1890s What Happened

Answer 1

Nucleic Acid Known To Be In Cells

Question 2

During The 1940’s What Happened

Answer 2

Genes Were Known To Be
1. On Chromosomes
2. Chromosomes Were Known To Be Made Of Protein And Nucleic Acid

Question 3

During The 1950’s What Happened

Answer 3

DNA Known As Molecule Of Inheritance & Discovery Of Double Helix

Question 4

Who Determined That DNA was a Double Helix

Answer 4

James Watson & Francis Kirk
(Won Nobel Prize In 1962)

Question 5

Dna?

Answer 5

• Has Capacity To Store Genetic Information
• Can Be Copied And Passed From Generation To Generation

Question 6

DNA & RNA are?

Answer 6

Nucleic Acids

Question 7

DNA & RNA Consist Of?

Answer 7

Chemical Units Called Nucleotides

Question 8

Nucleotides Are Joined By

Answer 8

A Sugar Phosphate Backbone

Question 9

The Four Nucleotides In DNA

Answer 9

Thymine, Cytosine, Adenine, Guanine

Question 10

Difference Between DNA Nitrogenous Bases and RNA Nitrogenous bases

Answer 10

RNA Has Uracil In Place Of Thymine

Question 11

DNA Replication is when

Answer 11

A cell or whole organism reproduces, a complete set of genetic instructions must pass from one generation to the next

Question 12

Dna replication begins

Answer 12

At specific sites on a double helix

Question 13

Dna replication proceeds

Answer 13

in both directions

Question 14

Replication Process is..

Answer 14

Fast and Quite Accurate

Question 15

During Replication Dozens Of Enzymes

Answer 15

• Make Covalent Bonds
• Keep DNA unzipped

Question 16

How many bases are incorrectly paired during replication

Answer 16

1 in 1 billion

Question 17

What happens when bases are incorrectly paired

Answer 17

Mutations

Question 18

DNA can be damaged by

Answer 18

Ultra Violet Light

Question 19

When DNA is damaged by Ultra Violet Light what repairs the damage

Answer 19

Enzymes and proteins involved in replication

Question 20

An organisms….. is the sequence of nucleotide bases in DNA

Answer 20

Genotype, Its genetic makeup

Question 21

The organisms…. Which arise from actions of a wide variety of proteins

Answer 21

Phenotype is the organisms specific physical traits

Question 22

Transcription __ -> ____

Answer 22

DNA -> RNA

Question 23

Translation ____ -> _______

Answer 23

RNA -> Protein

Question 24

In eukaryotic cells transcription occurs in the

Answer 24

Nucleus

Question 25

In eukaryotic cells translation occurs in the

Answer 25

Cytoplasm

Question 26

A ______ is any change in the nucleotide sequence of DNA

Answer 26

Mutation

Question 27

Mutations Can Result From

Answer 27

• Errors in DNA Replication
• Physical or chemical agents called mutagens