DNA Structure and Function

Question 1

What is the function of DNA

Answer 1

to store all of the genetic information that an organism needs to develop, function, and reproduce.

Question 2

Three components of nucleotides

Answer 2

nitrogenous base, sugar, and phosphate group.

Question 3

What is a double helix

Answer 3

Structure of DNA. Twisted ladder of DNA. Rungs are nitrogenous bases. Sides are phosphate and sugar.

Question 4

Nitrogenous base pairs

Answer 4

Adenine and Thymine, Guanine and Cytosine.

Question 5

Where is DNA located in the cell

Answer 5

Nucleus.

Question 6

semi-conservative DNA

Answer 6

One new strand, one old strand combine into new DNA.

Question 7

Anti-parallel DNA

Answer 7

Opposite direction strands (different sides of DNA)

Question 8

How many pairs of chromosomes do humans have

Answer 8

23

Question 9

Difference between Chromatin and Chromosomes

Answer 9

Chromatin: Made of DNA
Chromosomes : Made of proteins and RNA

Question 10

Chromatin

Answer 10

Loose strands of DNA wrapped around histone protiens

Question 11

Chromosomes

Answer 11

Made of tightly wound Chromatin

Question 12

Difference between DNA and RNA

Answer 12

DNA is double-stranded, forming a double helix. RNA is single-stranded.

RNA has ribose, and uses uracil

DNA has deoxyribose and uses thymine

Question 13

Charagaff

Answer 13

Base pairing rule

Question 14

Watson, Crick, Wilkins

Answer 14

shared Nobel prize for discovering structure of DNA

Question 15

Franklin (She)

Answer 15

took x ray of DNA showing double helix. Image 51

Question 16

autosomes

Answer 16

1-22 chromosomes