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Molecular Biology Quiz, Exams of Genetics

A quiz on molecular biology that includes questions on topics such as DNA replication, chromosomes, mutations, transgenic organisms, and viruses. The quiz consists of multiple-choice questions and provides feedback on the correct answer. The purpose of the quiz is to test the knowledge of the student on molecular biology concepts.

Typology: Exams

2021/2022

Available from 08/25/2022

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How long would the peptide be that is translated from the
mRNA sequence: 5'-AUGAUCGAUCACUAA-3'?
Question options:
1
4
3
5
2
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Which statement best describes prokaryotic chromosomes?
Question options:
Single-stranded, linear
Single-stranded, circular
Double-stranded, circular
Double-stranded, linear
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Which statement best describes eukaryotic chromosomes?
Question options:
Single-stranded, circular
Single-stranded, linear
Double-stranded, circular
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How long would the peptide be that is translated from the

mRNA sequence: 5'-AUGAUCGAUCACUAA-3'?

Question options:

Hide Feedback Great job.

Which statement best describes prokaryotic chromosomes?

Question options:

Single-stranded, linear Single-stranded, circular Double-stranded, circular Double-stranded, linear Hide Feedback Great job.

Which statement best describes eukaryotic chromosomes?

Question options:

Single-stranded, circular Single-stranded, linear Double-stranded, circular

Double-stranded, linear Hide Feedback Great job.

Why does one strand of DNA replicate as a continuous strand,

and the other in fragments?

Question options:

they are parallel, and DNA polymerase can synthesize from 5' to 3' they are anti-parallel, and DNA polymerase can synthesize in either direction they are parallel, and DNA polymerase can synthesize in either direction they are anti-parallel, and DNA polymerase can only synthesize from 5' to 3' Hide Feedback Great job.

What is a DNA mutation?

Question options:

a permanent change in the DNA sequence a change to the RNA sequence of an individual a method to keep all individuals of a species the same a mistake in the DNA sequence that can be fixed Hide Feedback Great job.

What is the most common method for repairing nucleotide

errors in DNA?

Question options:

What are the three components needed for protein synthesis?

Question options:

DNA, nucleus, ribosome DNA, lysosome, exon mRNA, DNA, ribosome mRNA, tRNA, ribosome Hide Feedback Great job.

Gel electrophoresis separates charged molecules on the basis

of what?

Question options:

contents and charge size and charge shape and color temperature and shape Hide Feedback Great job.

What compound carries a gene from one organism into a

bacterial cell?

Question options:

a plasmid a promoter

a nucleotide an enzyme Hide Feedback Great job.

Why was Dolly a Finn-Dorset and not a Scottish Blackface?

Question options:

the cytoplasmic donor was from a Scottish Blackface the surrogate ewe was a Finn-Dorset the nucleus came from a Finn-Dorset enucleation occurred with a Scottish Blackface egg Hide Feedback Great job.

Why are plants more difficult to make into transgenic species?

Question options:

they are easier because they don't move presence of cell wall, preventing bacteria mammals are regulated, plants are not the presence of chloroplasts, so photosynthesis is running Hide Feedback Great job.

What is a plasmid with foreign DNA inserted referred to as?

Question options:

What is an example of a genetically modified organism?

Question options:

a natural cross between zucchini and acorn squash a plant produced through traditional breeding a red apple with a gene from another apple cultivar mating of a horse and donkey to produce a mule Hide Feedback Great job.

The introduction of a non-mutated gene at a random location

to cure a disease by replacing a protein is called what?

Question options:

transgenic organism recombinant DNA gene therapy reverse genetics Hide Feedback Great job.

Although mutations can produce a wide range of phenotypic

results, most are actually what?

Question options:

advantageous and dominant deleterious and recessive advantageous and recessive deleterious and dominant

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What process results in the production of identical individuals?

Question options:

reproductive cloning therapeutic cloning intense cloning gene cloning Hide Feedback Great job!

Why are some viruses species- or tissue-specific?

Question options:

The inner RNA must be compatible with the host RNA The proteins in its outer shell must be able to interact with host cellular proteins. The inner DNA must be compatible with the host DNA. The RNA must first be added to the nucleus of the host, then added to the cell Hide Feedback Great job.

How many significant figures does 0.105 have?

Question options:

Question options:

zoonic host vector parasite Hide Feedback Great.

What is the relative length of the tobacco mosaic virus?

Question options:

1000 nm 25 nm 250 nm 100 nm Hide Feedback Great.

Why is Zika of concern to pregnant women?

Question options:

it can cause Down's Syndrome it can cause spina bifida it can cause microcephaly It can cause clubfoot Hide Feedback Great.

Which is the largest virus overall, when comparing relative

sizes?

Question options:

Ebola Rabies Adenovirus Zika Influenza Hide Feedback Great.

What is the only virus that we reviewed in the lab to infect

plants?

Question options:

Ebola HIV TMV T Hide Feedback Great.

In a few sentences, what was the overall purpose of the lab for

this week? You should include 1-2 sentences on the methods

and then the overall reason.