Biology quiz

Question 1

Apoptosis is

Answer 1

Programmed cell death

Question 2

Two types of cells?

Answer 2

Somatic and sex cells

Question 3

Chromoses occurs in what kind of pairs

Answer 3

Homologous

Question 4

Homologue means what

Answer 4

twins

Question 5

production of sperm is called

Answer 5

spermatogenesis

Question 6

production of eggs is called

Answer 6

oogenesis

Question 7

scientists that discovered DNA

Answer 7

James Watson and Francis Crick

Question 8

Nucleotides are made of

Answer 8

1) sugar 2) phosphate 3)1 of 4 possible nitrogen bases

Question 9

4 types of nitrogen bases in DNA

Answer 9

Adenine - thymine and Cytosine - guanine

Question 10

DNA is what type of polymer

Answer 10

nucleotide

Question 11

The semi-conservative process is

Answer 11

a mechanism for DNA replication that produces two new DNA molecules, each with one original strand and one new strand.

Question 12

3 types of RNA

Answer 12

mRNA (messenger), rRNA (ribosomal RNA), tRNA (transfer RNA)

Question 13

mRNA job?

Answer 13

takes message from DNA to ribosomes

Question 14

rRNA job?

Answer 14

Helps make up ribosomes

Question 15

tRNA job?

Answer 15

transfer amino acids to the ribosomes

Question 16

how many types of amino acids are there?

Answer 16

20

Question 17

how many codons are there?

Answer 17

61

Question 18

proteins are determined by what?

Answer 18

how the amino acids line up

Question 19

what is the start codon

Answer 19

AUG

Question 20

when one of the 3 stop codons is red what happens?

Answer 20

it becomes terminated

Question 21

gene mutation is

Answer 21

the change in the sequence of bases in a gene

Question 22

what 4 types of mutation are there?

Answer 22

frameshift, point, nonsense, and Mis sense

Question 23

if one or more nucleotides is either inserted or deleted what kind of mutation results?

Answer 23

frameshift

Question 24

if a single nucleotide is changed causing the codon to be changed what mutation results

Answer 24

Point

Question 25

if the substitution of a stop codon occurs in a gene what mutation results?

Answer 25

Nonsense

Question 26

affects the shape and functions of a protein what mutation results?

Answer 26

Mis Sense

Question 27

What are mutagens

Answer 27

agents that cause mutations (Pesticide, radiation, tobacco smoke