U4T1 – Genes and Chromosomes

Genes and Chromosomes

1 / 25

True or False : The sex chromosomes ( X and Y) are an homologous pair?

TRUE

FALSE

2 / 25

Eukaryotic DNA is stored, wrapped around which type of protein?

Centriole

Chromosome

Centrosome

Histone

3 / 25

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

Circular

Linear

Double Stranded

Double helix

4 / 25

Which type of DNA is not circular?

Mitochondrial

Plant Nuclear

Chloroplast

Bacterial

5 / 25

Describe how prokaryotic DNA is stored

Wound around histone proteins

As pairs of linear chromosomes

Supercoiled

Uncoiled

6 / 25

What is a gene?

A section of DNA

A section of DNA which codes for a protein

A section of DNA which codes for a functional RNA

A section of DNA which codes for a protein or a functional RNA.

7 / 25

Which of the following is not coded for by a gene?

Polysaccharide

Ribosomal RNA

tRNA

Polypeptide

8 / 25

Which word does NOT describe the genetic code?

Degenerate

Universal

Non-Overlapping

Interrupted

9 / 25

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

Introns

Exons

Variable Number Tandem Repeats

Promoter Sequences

10 / 25

What do we call a section of DNA which does not carry a code for a functional RNA or amino acid?

Introns

Exons

Variable Number Tandem Repeats

Promoter Sequences

11 / 25

What is the position of gene on a chromosome called?

Locus

Allele

Centromere

Centriole

12 / 25

What is an allele?

A similar gene

A different gene

A different form of the same gene

A cluster of genes

13 / 25

What is the genome of a cell?

All the genes which code for a protein in cell.

All the genes which code for a protein or a functional RNA in a cell.

All the genetic material in exons, in a cell.

All the genetic information, both introns, exons and non-coding DNA in a cell.

14 / 25

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.

15 / 25

How many chromosomes do most human cells contain?

23

37

46

48

16 / 25

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.

17 / 25

What is a 'sister chromatid' or 'sister chromosome'?

The same chromosome ( same number e.g. 21) but possibly with different alleles. Can be linear, or X shaped.

An identical copy of a chromosome, with identical alleles. Joined by the centromere to form a X shape.

A pair of linear, single chromosomes.

Two X sex- chromosomes (XX) .

18 / 25

In an homologous pair of chromosomes, would alleles be...

Always homozygous ( two copies of the same form).

Always the same allele, but at different Loci.

Always heterozygous ( two copies but with different alleles).

Always at the same locus, but could be different alleles.

19 / 25

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.

20 / 25

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

TRUE

FALSE

21 / 25

On this diagram, what does A represent?

Sister Chromatids

Homologous Chromosomes

Sex Chromosomes

22 / 25

On this diagram, what does B represent?

Sister Chromatids

Homologous Chromosomes

Loci

23 / 25

On this diagram, what does C represent?

Loci

Homologous Chromosomes

Centromeres

24 / 25

On this diagram, what does D represent?

Locus

Homologous Chromosomes

Centromeres

25 / 25

What do H and h represent?

Different genes

Different Alleles

Different loci

Thank you for taking the quiz. Please fill in the fields below and you will receive your results in an email.

If you have been set this as homework, you should forward this email to your teacher as evidence you have completed the quiz.

If you don't receive your email please check your spam or junk folder.

Your score is

0%

Recent Posts

Categories