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Genetics and DNA

Authored by Wayground Content

Biology

10th Grade

Genetics and DNA
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dominant allele

Describes an allele that is always expressed.

Describes an allele that is only expressed in the homozygous state.

Describes an allele that is masked by a recessive allele.

Describes an allele that has no effect on the phenotype.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An environmental risk of genetic engineering includes negative environmental impacts, e.g., reduction in biodiversity, impact on food chain, contamination of non-GM crops forming ‘superweeds’.

Reduction in biodiversity

Increase in crop yield

Improvement of soil quality

Enhanced nutritional value of crops

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Classification

Genetic profiling helps in the classification of organisms.

Genetic profiling is used to determine the age of organisms.

Genetic profiling is primarily used for agricultural purposes.

Genetic profiling is a method for identifying the color of organisms.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sugar in DNA

Part of the backbone of DNA, alternating with phosphate.

A type of protein found in cells.

A component of RNA only.

A source of energy for cellular processes.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Base pairing in DNA

A pairs with C and T pairs with G.

A pairs with T and C pairs with G.

A pairs with G and T pairs with C.

A pairs with T and C pairs with A.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Enzymes in genetic profiling

Used to cut DNA into fragments.

Used to amplify DNA sequences.

Used to sequence RNA molecules.

Used to repair damaged DNA strands.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are genetically engineered organisms known as?

GM organisms.

GE organisms.

Bioengineered organisms.

Synthetic organisms.

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