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Genetics Review

Authored by Dava Reischman

9th - 10th Grade

Used 25+ times

Genetics Review
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30 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement is an accurate description of genes?

Proteins are made of genes and code for DNA

Genes are made of proteins that code for nitrogen bases

DNA is made of carbohydrates that code for genes.

Genes are made of DNA and code for proteins.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A woman changes her hair color to red; however, her children will not inherit this red hair color because the woman does not have

genes for red hair in her skin

genes for red hair in her sex cells

proteins for red hair in her placenta

proteins for red hair in her egg cells

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The region labeled A is made up of a section of

a protein that becomes an enzyme

DNA that may direct protein synthesis

a carbohydrate made from amino acids

glucose that may be copied to make DNA

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The molecule DNA contains the four bases listed below.

A – adenine

C – cytosine

G – guanine

T – thymine

Which base pairings normally occur during DNA replication?

Guanine pairs with cytosine. Thymine pairs with thymine.

Adenine pairs with thymine. Cytosine pairs with guanine.

Thymine pairs with guanine. Cytosine pairs with adenine.

Cytosine pairs with cytosine. Thymine pairs with thymine.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which molecules are needed to cut and copy segments of DNA?

reproductive hormones

carbohydrates

antibodies

biological catalysts

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which event takes place first during DNA replication?

A single-stranded RNA molecule is formed.

Transfer RNA links to an amino acid.

Free nucleotides are bonded together in the correct sequence.

The DNA molecule "unzips" along weak hydrogen bonds.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If 15% of a DNA sample is made up of thymine, T, what percentage of the sample is made up of cytosine, C?

15%

35%

70%

85%

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