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

What technique is required when culturing bacteria?

Septic Technique

Aseptic Technique

Antibiotic Technique

2 / 20

Which of the following has contributed to the development of antibiotic resistant strains of bacteria?

Prescription of anibiotics for serious bacterial infections only.

Patients completing the full course of antibiotics.

Over prescription of antibiotics.

3 / 20

A mutation in a population of bed bugs in New York City caused the bedbugs to have a thicker, waxier exoskeleton. Why will the allele for thicker , waxier exoskeleton in bed bugs increase in the population?

The thicker exoskeleton makes it easier to lay eggs. More eggs are laid, so more bed bugs with thicker exoskeleton.

The thicker exoskeleton means that the insecticide used to kill them is no longer effective. The thicker exoskeletal bed bugs are more likely to reproduce and pass on the new allele.

The waxy exoskeleton is waterproof, so they are less likely to drown.

4 / 20

What does 'Differential Reproductive Success' mean?

Some individuals within a population are more likely to reproduce than others.

Different species have different reproductive success.

More organisms reproduce successfully over time.

5 / 20

Tristan De Cunha is an island populated by a small number of Britons in the early 1800's. What is this an example of ?

Speciation

Genetic Bottleneck.

Founder Effect

6 / 20

What type of mutation is this ? ACCTGG becomes ACCTTGG

Addition

Substitution

Deletion

7 / 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

8 / 20

What is the order of events from the diagram for Meiosis division 2?

3, 4, 1, 6

7, 4, 2, 6

6, 7, 5, 2, 8

9 / 20

Is Anaphase 2 more similar to Anaphase 1, or Anaphase in mitosis?

More similar to Anaphase 1.

More similar to anaphase in mitosis.

10 / 20

On this diagram, what does A represent?

Sister Chromatids

Homologous Chromosomes

Sex Chromosomes

11 / 20

How many tRNA molecules can fit into a ribosome at any time?

2

3

4

12 / 20

What molecule is made in prokaryotic transcription?

mRNA

pre-mRNA

tRNA

13 / 20

What word describes the fact there is more than one set of three bases for each amino acid?

Polypeptide

Polygenic

Degenerate

14 / 20

On this diagram, what does D represent?

Locus

Homologous Chromosomes

Centromeres

15 / 20

On this diagram, what does B represent?

Sister Chromatids

Homologous Chromosomes

Loci

16 / 20

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

TRUE

FALSE

17 / 20

In an homologous pair of chromosomes...

Both chromosomes are from the mother.

Both chromosomes are from the father.

One of the pair came from the mother, and the other came from the father.

he chromosomes are clones of each other.

18 / 20

What is an 'homologous chromosome'?

The same chromosome ( same number e.g. 21) but possibly with different alleles

An identical copy of a chromosome, with identical alleles.

When two alleles are the same, on a pair of chromosomes.

Any two chromosomes.

19 / 20

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

Introns

Exons

Variable Number Tandem Repeats

Promoter Sequences

20 / 20

How would you describe the shape of prokaryotic chromosome, when compared to a eukaryotic chromosome?

Circular

Linear

Double Stranded

Double helix

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