10-1/10-2/10-3/10-4

Question 1

Bacteriophage

Answer 1

Viruses that infect bacteria

Question 2

Hershey’s and chase experiment led to the conclusion that

Answer 2

DNA is the hereditary molecules in viruses

Question 3

☃

Answer 3

DNA can transform bacteria to one organism to another

Question 4

Transformation

Answer 4

Transformation of genetic material from one organism to grow to the next

Question 5

Griffith’s experiment included…

Answer 5

1. Injecting the mice with R and the mice being able to fight it off. Injecting the mice with S and the mice not being able to fight it off.
2. Wanted to to kill the S strain, heated up the S and injected it in too the mice. The bacteria couldn’t do anything and then the mice was fine.
3. injected the mice with R and then injected the mice wth the heated up S and something happened, the DNA transformed the S back.

Question 6

Oswald Avery and is colleagues showed that…

Answer 6

1. Figured out that when the S Bacteria was killed there DNA was still there witch got picked up the bad Bacteria causing it to transform into bad Bacteria.
2. Avery and Griffith used mice and bacteria, and that they figured out that DNA and Bacteria is a transforming agent.

Question 7

Hershey and chase give…

Answer 7

1. Radioactive elements to viruses, viruses ended up have this protein coat that had radioactive sulfur.
2. They took this viruses and gave it to E. coli and they wanted to see what would be passed on. There was No Radioactive sulfur, there was only radioactive phosphorous witch meant the DNA is the hereditary material for viruses.

Question 8

Purine

Answer 8

A pair of nitrogenous bases connected by hydrogen bonds.

Question 9

Nitrogenous base

Answer 9

Contains nitrogen atoms and carbon (c) atoms that is a base

Question 10

The primary function of DNA in cells is to

Answer 10

Store information that tells the cells with proteins to make.

Question 11

The two strands of DNA molecule are held together by

Answer 11

Hydrogen bonds

Question 12

According to the base- pairing rules, guanine binds with

Answer 12

Cytosine

Question 13

Which of the following is not a correct structure of a nucleotide

Answer 13

Adenine- ribose- phosphate

Question 14

The percentage of adenine in DNA is

Answer 14

Equal to the percentage of thymine

Question 15

What are the 3 parts of a DNA nucleotide, and how are they connected to each other.

Answer 15

• Deoxyribose sugar, A nitrogen base, A phosphate group

- The phosphate and base are connected to differ parts of the sugar

Question 16

If 15% of the nucleotides in a DNA molecule contain guanine, what percentage of the nucleotides contain each of the other three bases

Answer 16

15% Because there all equal

Question 17

Why is complementary base pairing important in DNA structure

Answer 17

The hydrogen bonds between the base is holding the two strands of DNA together and because it serves as a way for DNA to replicate.

Question 18

How did X-Ray diffraction photographs help Watson and crick determine the structure of DNA

Answer 18

Is showed that is was a double helix and gave hints about structure