AnswersBiology AGenetic Code

Genetic Code Answers

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1
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Which of the following incorrectly matches the term with its location?

A
DNA is found in a chromosome.
B
Chromosomes are found in the nucleus of a cell.
C
Genes are located in a nucleotide.
D
Nitrogen bases are located in the central rungs of a DNA ladder.
2
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Who is credited with creating the first accurate model of DNA?

A
Rosalind Franklin
B
Friedrich Miescher
C
James Watson and Francis Crick
D
Marshall Nirenberg and Heinrich Matthaei
3

According to Chargaff's rule, base pairing in DNA should resemble which of the following?

A
A = T; C = G
B
A = C; T = G
C
A = G; T = U
D
A = U; C = G
4

Rosalind Franklin is famous for which contribution to the study of DNA?

A
creation of an accurate model of DNA structure
B
creation of an X-ray diffraction image of DNA structure
C
identification of a pattern in ratios of DNA bases
D
identification of DNA in bandages that contained pus
5

Which are segments of DNA that code for specific traits?

A
genes
B
chromosomes
C
proteins
D
codons
6

Organisms inherit specific traits and characteristics from their parents. Albinism is an inherited disorder that occurs when an organism is unable to produce or distribute melanin. Melanin is a substance in the body that helps determine skin color, hair color, and eye color.Which is the basic unit of heredity that carries the trait of albinism from parent to offspring?

Question illustration
A
base pairs
B
genes
C
proteins
D
codons
7

As DNA is replicated, which DNA base pair will bond to cytosine?

A
adenine
B
thymine
C
cytosine
D
guanine
8

Which bases are found in a strand of DNA?

A
thymine, guanine, cytosine, uracil
B
guanine, cytosine, uracil, adenine
C
cytosine, glycine, adenine, thymine
D
adenine, thymine, guanine, cytosine
9

Which best describes the outcome of DNA replication?

A
The new DNA molecule is identical to the original DNA.
B
The new DNA molecule is synthesized from amino acids.
C
The new DNA molecule has a different number of codons.
D
The new DNA molecule is single-stranded.
10

What is one benefit of mapping the human genome?

A
locating the chromosomal abnormalities that cause disease
B
having the genomes of every living individual on file
C
choosing the gender or intellectual ability of an unborn child
D
cloning the individuals that comprise a nearly extinct tribe

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