Biology DNA

Question 1

What is the genetic material within the nucleus of most cells called?

Answer 1

DNA

Question 2

What is a genome?

Answer 2

The collection of all DNA of an organism

Question 3

Most cells contain a complete copy of an organisms …………?

Answer 3

genome

Question 4

The human DNA is tightly packed in 46 long molecules known as?

Answer 4

chromosomes

Question 5

What are sections of a chromosome called?

Answer 5

genes

Question 6

What do the genes do?

Answer 6

The control different characteristics in the organism

Question 7

Give 4 points about the structure of the DNA.

Answer 7

DNA is in a double-stranded helix

DNA is made up of four bases

Each base is joined to a pentose sugar and a phosphate group

These make up a nucleotide

Question 8

What are the names of the four bases?

Answer 8

Adenine
Thymine
Guanine
Cytosine

Question 9

Explain complimentary base paring?

Answer 9

complimentary base paring is when the bases within the DNA bond with one another. But they only bond to one specific base. Adenine always bonds with Thymine and Cytosine always pairing with Guanine

Question 10

What bond hold together the complimentary bases?

Answer 10

Hydrogen bonds

Question 11

How are hydrogen bonds formed?

Answer 11

They are formed because of weak electrical charges between bases

Question 12

How many hydrogen bonds does Cytosine and Guanine form?

Answer 12

3

Question 13

How many hydrogen bonds does Adenine and Thymine form?

Answer 13

2