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Quiz on Genes , created by MPusey on 05/01/2015.

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Genes

Question 1 of 20

1

What is a genotype?

Select one of the following:

  • The alleles an organism has

  • The characteristics an organisms alleles produce

  • A section of DNA that codes for a protein that results in a characteristic

Explanation

Question 2 of 20

1

What is a phenotype?

Select one of the following:

  • The alleles an organism has

  • The characteristics an organisms alleles produce

  • A section of DNA that codes for a protein that results in a characteristic

Explanation

Question 3 of 20

1

What is the process of the central dogma?

Select one of the following:

  • DNA replication --> transcription --> translation

  • RNA replication --> transcription --> translation

  • Mitosis --> translation --> transcription

  • DNA replication --> translation --> transcription

Explanation

Question 4 of 20

1

Where does DNA replication take place?

Select one of the following:

  • In the nucleus

  • In the cytoplasm

  • In extracellular fluid

Explanation

Question 5 of 20

1

Where does transcription take place?

Select one of the following:

  • In the nucleus

  • In the cytoplasm

  • In the extracellular fluid

Explanation

Question 6 of 20

1

Where does translation take place?

Select one of the following:

  • In the nucleus

  • In the cytoplasm

  • In the extracellular fluid

Explanation

Question 7 of 20

1

What is the name of the long arm of the chromosome?

Select one of the following:

  • Q arm

  • P arm

  • S arm

  • T arm

Explanation

Question 8 of 20

1

Where on the chromosome would you find the telomere?

Select one of the following:

  • At the end of each arm

  • In the centre

  • In the P arms only

  • In the Q arms only

Explanation

Question 9 of 20

1

What is the name for the centre of the chromosome?

Select one of the following:

  • Telomere

  • Centromere

  • Spindle

  • Chromatid

Explanation

Question 10 of 20

1

What is an intergenic region?

Select one of the following:

  • A region of DNA that does not code for a protein

  • Useless sections of DNA that are considered "junk"

  • A gene within another gene that codes for a different protein than the gene it is encompassed in

  • Regions of DNA where there is a DNA backbone but no DNA bases

Explanation

Question 11 of 20

1

What is the function of the intergenic regions?

Select one of the following:

  • They do not have a function

  • They have regulatory functions

  • They are there to make sure that the arms of the chromosome are symmetrical

  • They make up the telomere

Explanation

Question 12 of 20

1

Introns code for proteins. True or false?

Select one of the following:

  • True
  • False

Explanation

Question 13 of 20

1

Exons code for proteins. True or false?

Select one of the following:

  • True
  • False

Explanation

Question 14 of 20

1

Where does transcription begin?

Select one of the following:

  • At a promotor

  • At an ATT codon

  • At a palindrome

  • At the centromere

Explanation

Question 15 of 20

1

What is the function of RNA polymerase?

Select one of the following:

  • To add complementary RNA nucleotides to an elongating strand of mRNA

  • To unwind the DNA double helix locally

  • To add complementary DNA nucleotides to an elongating stand of mRNA

Explanation

Question 16 of 20

1

Which end of the mRNA is "capped" after transcription has occurred?

Select one of the following:

  • 5'

  • 3'

Explanation

Question 17 of 20

1

Which end of the mRNA is "polyadenylated" after transcription has occurred?

Select one of the following:

  • 5'

  • 3'

Explanation

Question 18 of 20

1

What is polyadenylation?

Select one of the following:

  • The addition of lots of adenines to the end of the new mRNA

  • The removal of the adenine at the 3' end of the new mRNA molecule

  • The addition of lots of ATP molecules to the end of the new mRNA molecule

Explanation

Question 19 of 20

1

What is spliced out of the mRNA after transcription?

Select one of the following:

  • Introns

  • Exons

  • Telomeres

  • Intergenic regions

Explanation

Question 20 of 20

1

Where are the introns spliced out of the mRNA?

Select one of the following:

  • In the nucleus

  • At a splicosome

  • At a ribosome

  • In the extracellular fluid

Explanation

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