DNA

Question 1

What is a segment of DNA called?

Answer 1

Gene

Question 2

What is the complete set of DNA in an organism referred to as?

Answer 2

Genome

Question 3

What is a package of DNA containing part or all of the genetic material of an organism?

Answer 3

Chromosome

Question 4

What do we call a health problem caused by one or more abnormalities in the genome?

Answer 4

Genetic conditions

Question 5

What is the process of directly changing an organism’s DNA known as?

Answer 5

Genetic engineering

Question 6

What is the hereditary material found in all living organisms that carries genetic instructions?

Answer 6

DNA

Question 7

DNA has a double helix structure composed of _______.

Answer 7

3 strands made of nucleotides

Question 8

What does each nucleotide in DNA contain?

Answer 8

• A sugar molecule
• A phosphate group
• A nitrogenous base

Question 9

What is a molecule that is present in the majority of living organisms and viruses?

Answer 9

RNA

Question 10

what are the 4 base molecules in dna

Answer 10

Adenine,Thymine, Cytosine, Guanine

Question 11

how do the base molecules pair

Answer 11

Adenine pairs with Thymine, Cytosine pairs with Guanine

Question 12

what do genes contain

Answer 12

sequences that encode information for the synthesis of protein

Question 13

how many hydrogen bonds between thymine and adenine

Answer 13

2

Question 14

how many hydrogen bonds between guanine and cytosine

Answer 14

3

Question 15

DNA and RNA care both types of what ?

Answer 15

nucleic acid

Question 16

what does DNA stand for

Answer 16

DeoxyriboNucleic Acid

Question 17

what does DNA do

Answer 17

stores genetic information for growth and development.

Question 18

what is the sugar phosphate backbone made up of

Answer 18

pentose sugar and phosphate​

Question 19

what are the polynucleotide strands joined together by

Answer 19

hydrogen bonds

Question 20

what are bases made up of

Answer 20

organic (carbon based) molecules made up of nitrogen-containing ring structures.

Question 21

what are chromosomes

Answer 21

Threadlike structures made of protein and a single molecule of DNA that carries genomic information between cells

Question 22

where are chromosomes found

Answer 22

nucleus

Question 23

how many pairs of chromosomes should humans have

Answer 23

23

Question 24

what are the male chromosomes

Answer 24

XY

Question 25

what are the female chromosomes

Answer 25

XX

Question 26

what is Chromatin

Answer 26

the substance all chromosomes are made up of

Question 27

what are telomers

Answer 27

A section of repetitive DNA at the end of chromosomes Protects the ends of chromosomes from degrading Can loose 50 - 250 bases every cell division