Dna replication

Question 1

What is the end product of transcription?

Answer 1

a complementary copy of mRNA

Question 2

What is the end product of translation?

Answer 2

a growing protein chain

Question 3

mutation in which one nucleotide is switched with another is called -

Answer 3

a substitution

Question 4

What is a mutation?

Answer 4

A change in the DNA.

Question 5

What is the function of mRNA?

Answer 5

Carries instructions from the nucleus to the ribosome

Question 6

What is the function of tRNA?

Answer 6

Carries amino acids to the ribosome

Question 7

If a protein had 10 amino acids, how many nucleotides were transcribed?

Answer 7

30

Question 8

Which mutation occurred if the original sequence is TCTAAG and the new sequence is TCTAAGCG?

Answer 8

Frameshift insertion

Question 9

the central dogma of DNA…What is the correct order?

Answer 9

DNA —> RNA —> Protein

Question 10

Transcribe DNA: TTC, GGC, ATC

Answer 10

AAG, CCG, UAG

Question 11

Find the amino acids sequence for: TTC, GGC, ATC

Answer 11

Lys, Pro, STOP

Question 12

When does DNA replication occur?

Answer 12

During S phase of the cell cycle

Question 13

Which of the following enzymes unwinds the DNA double helix structure?

Answer 13

Helicase

Question 14

Which of the following enzymes “reads” the DNA strand during DNA replication?

Answer 14

DNA polymerase

Question 15

If the original DNA sequence is GGA, which of the following is the mRNA sequence?

Answer 15

CCU

Question 16

Where in the cell does transcription take place?

Answer 16

Nucleus

Question 17

Where in the cell does translation take place?

Answer 17

Ribosome

Question 18

When a base is replaced in a sequence with another that is what kind of mutation?

Answer 18

Substitution

Question 19

if a mutation occurs in the somatic cells can it be passed down to offspring?

Answer 19

no

Question 20

Which mutation results in part of a gene sequence being repeated?

Answer 20

Duplication

Question 21

Which mutation results in chromosomes failing to separate during meiosis?

Answer 21

Nondisjunction