Genetic Variation & Information Random Retrieval

This quiz contains all the questions in the Genetic Variation & Information section. The website will pick 20 questions at random.

1 / 20

True or false : The most effective antibiotic for E Coli O121 will also be the most effective antibiotic for EColi K1.

TRUE

FALSE

2 / 20

Which of the following is an example of directional selection?

Human Birth Weight

Length of a giraffe's neck.

Best camouflaged colour of mouse's coat in woodland.

3 / 20

What type of selection is shown on this graph?

Directional

Stabilising

Convergent

4 / 20

Why do most mutations cause a decrease in reproductive success?

Because a mutation often causes a non-functional protein in the affected organism, leading to a loss of function in certain tissues or organs.

Because the mutation will reduce the production of gametes.

Because the mutation means only infertile offspring are produced.

5 / 20

True or false : The Founder Effect is a type of genetic drift?

TRUE

FALSE

6 / 20

In Biology, what does genetic diversity represent in a population?

The number of different versions of alleles within a species.

The number of different breeds with-in a species.

The number of different species.

7 / 20

What type of mutation is this ? ACCTGG becomes ACCTTGG

Addition

Substitution

Deletion

8 / 20

What type of mutation is this ? ACCTGG becomes ACGTGG

Addition

Substitution

Deletion

9 / 20

A sheep cheek cell which is not dividing has 54 chromosomes, how many chromatids will be present during Meiotic Prophase 1 in the testes?

27

54

108

10 / 20

During recombination ( crossing over), genetic material can be swapped between which two structures?

Homologous Chromosomes

Sister Chromosomes

11 / 20

What word do we use to describe the pairs of chromosomes?

Homologous Chromosomes

Homozygous Chromosomes

Sister Chromatids

12 / 20

What molecule is formed at the end of translation?

Polysaccharide

Mature RNA

Polypeptide

13 / 20

In eukaryotes, the pre-mRNA is modified by removing what?

Introns

Exons

Start Codons

14 / 20

Which enzyme is used in transcription?

RNA Polymerase

DNA Polymerase

Helicase

15 / 20

What does the 'm' stand for in mRNA?

Migrating

Multiple

Messenger

16 / 20

What is a difference between RNA and DNA?

DNA is made of of nucleotides, RNA is made out of amino acids.

DNA uses the genetic code, RNA uses sequences of amino acids.

DNA is double stranded, RNA is single stranded.

17 / 20

True or False : The sex chromosomes ( X and Y) are not an homologous pair?

TRUE

FALSE

18 / 20

What is the proteome of a cell?

Only those proteins which are expressed (made) by a tissue.

The entire set of proteins that are expressed, or could be expressed by an organism.

Those proteins which could be expressed, but aren't.

The proteins which make up the physical structure of a cell.

19 / 20

What is the position of gene on a chromosome called?

Locus

Allele

Centromere

Centriole

20 / 20

Which of the following carries the code for the order of amino acids?

Introns

Exons

Variable Number Tandem Repeats

Promoter Sequences

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