DNA & RNA

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DNA & RNA

This section covers DNA, RNA and protein synthesis

Which ONE of the following compounds contains amino acids? *

2 points

RNA

Protein

Glucose

DNA

A dye stains a particular type of nucleic acid red. When the dye was used to identify which organelles in a cell contain this nucleic acid, only the nucleus and ribosomes stained red. This result shows that the dye stains structures that contain... *

2 points

DNA

RNA

DNA and protein

both DNA and RNA

Based on the information below, which male is the biological father of the child? *

2 points

male 1

male 2

male 3

male 4

2 points

A molecule of RNA is copied from DNA by the process of... *

2 points

transcription

mitosis

mutation

translation

The shape of the DNA molecule was discovered by... *

2 points

Franklin, using evidence obtained from Watson and Crick

Franklin, working independently of anyone else

Watson and Crick, working independently of anyone else

Watson and Crick, using evidence obtained from Franklin

Scientists have created a genetically modified zebrafish, a 'GloFish'. This fish has a gene that makes it glow in the dark. This gene was introduced into the species by... *

2 points

interbreeding with another species of fish that is able to glow

removing the gene from a glowing fish and inserting it into a chromosome of the zebrfish

the process of natural selection

interbreeding

A messenger RNA (mRNA) molecule consists of 300 nitrogenous bases. The maximum number of amino acids that it can code for is... *

2 points

300

150

100

The DNA of different species only differs in the... *

2 points

components of the nucleotides

sequence of the nucleotides

type of bond betweent he nitrogenous bases

type of sugar that it contains

One strand of a DNA molecule has 60 adenine and 20 thymine molecules. How many adenine molecules are present in the double-stranded DNA molecule? *

2 points

150

300

The structure of DNA was determined by using X-ray pictures produces by... *

2 points

Watson and Crick

Franklin and Wilkins

Watson and Franklin

Crick and Franklin

Which ONE of the following parts of the graph represents interphase? *

2 points

The graph above shows changes in the amount of DNA present in a cell over a period of 36 hours

T to V

W to X

V to Y

X to Z

The structure below is involved in the process of... *

2 points

The diagram above is a representation of a tRNA molecule

transcription

replication

translation

crossing over

Molecule X in the diagram below represents...

2 points

The diagram above is a representation of a tRNA molecule

DNA

an amino acid

a nucleic acid

three nucleotides

Clear selection

A human somatic cell has... *

2 points

46 autosomes and 2 gonosomes

2 autosomes and 44 gonosomes

44 autosomes and 2 gonosomes

23 autosomes and 23 gonosomes

DNA sequencing can be used for which combination of the procedures below?

2 points

(i), (ii), (iii) and (iv)

Only (i), (ii), and (iv)

Only (i), (ii) and (iii)

Only (i) and (iv)

Clear selection

The evidence shown below shows that...

2 points

only Tom was present at the scene of the crime

Tom and Joe were present at the scene of the crime

only Mo was present at the scene of the crime

Joe was present at the scene of the crime

Clear selection

The procedure below is called...

2 points

cloning

DNA replication

DNA profiling

fingerprinting

Clear selection

In a DNA molecule...

2 points

guanine pairs with adenine

adenine pairs with thymine

cytosine pairs with adenine

guanine pairs with thymine

Clear selection

Which ONE of the following combinations of effects will result if the hydrogen bonds in DNA were strong? *

2 points

(i), (ii) and (iv) only

(i), (ii) and (iii) only

(ii), (iii) and (iv) only

(i), (ii), (iii) and (iv)

The process where one DNA molecule produces two identical DNA molecules is called *

2 points

reproduction

replication

translation

protein synthesis

A difference between DNA and RNA: *

2 points

RNA is double-stranded and DNA is single-stranded

DNA has a sugar-phosphate frame, whereas RNA does not

There are weak hydrogen bonds in DNA, but not in RNA

RNA has a helix structure and DNA is straight

The difference between nucleic acids and nucleotides is that... *

2 points

nucleic acids are building blocks of nucleotides

nucleotides are building blocks of nucleic acids

nucleotides are larger than nucleic acids

nucleic acids are found in the nucleus and nucleotides are found in the cytoplasm

The location of DNA *

2 points

nucleus

Mitochondria

Nucleus and Mitochondria

Cytoplasm

A Sample of DNA has 60 guanine bases and 30 adenine bases. How many phosphate molecules would you expect in this sample of DNA?

2 points

180

270

Clear selection

Select the anticodon of the fourth base triplet on sequence 2 *

2 points

The sequences above are from two individuals and are read from left to right.

GUU

GAA

TGC

UGC

The diagram below represents the chemical structure of a protein. What does the X represent? *

2 points

Hydrogen bond

Nitrogen base

Peptide bond

MRNA molecule

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