DNA & RNA Structure and Function

Question 0

Both stands of DNA are held together by what bond and why?

Answer 0

Weak hydrogen bonds because DNA is constantly being pulled apart to be copied

Question 1

How are DNA and RNA similar?

Answer 1

both are made of nucleic acids

Question 2

Which four nitrogen bases are partners in DNA?

Answer 2

Adenine - Thymine

Guanine - Cytosine

Question 3

Which four nitrogen bases are partners in RNA?

Answer 3

Adenine - Uracil

Guanine - Cytosine

Question 4

Are the two strands of DNA complementary to each other?

Answer 4

Yes

Question 5

What is the function of DNA?

Answer 5

stores and transmits genetic information from one generation to the next, from one parent cell to daughter cells

Question 6

Does DNA ever leave the nucleus

Answer 6

No

Question 7

What is the function of RNA?

Answer 7

used by cells as a working copy of a gene to be used in the production of proteins

Question 8

Can RNA leave the nucleus?

Answer 8

Yes

Question 9

When does DNA happen?

Answer 9

before cell division so each new cell gets a full set of chromosomes

Question 10

What are the steps to DNA replication?

Answer 10

1. The DNA strands are “unzipped”
2. The enzyme, DNA polymerase, attaches free nucleotides to build a new complementary strand along each old strand
3. DNA polimerate proof reads DNA strands

Question 11

What process is semi conservative replication

Answer 11

DNA replication (saving old strand and adding new strand)

Question 12

Where does prokaryotic DNA replication occur?

Answer 12

on one spot on the chromosome and proceeded in both directions

Question 13

Where does DNA replication occur in eukaryotic cells?

Answer 13

replication occurs in hundreds of places simultaneously in both directions to speed up the process