Chapter 6, Section 1 A: Question Preview (ID: 2852)

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The code for a given amino acid consists of ___ bases.
a) one
b) two
c) three
d) four

What material make up each nucleotide in a DNA molecule?
a) a gene, an allele, and a trait
b) a sugar, a phosphate, and a base
c) chromosomes and genes
d) an amino acid, a base, and a protein

The complementary strand to the DNA sequence TAGTCA would be

Which of the following statements is FALSE?
a) The environment has no influence on a person's traits
b) Several genes may afftect a single trait
c) A single gene can affect more than one trait
d) A mutation can affect the traits of an organism

In a DNA molecule, which of the following bases pair together?
a) adenine and cytosine
b) thymine and adenine
c) thymine and guanine
d) cytosine and thymine

A gene is ___.
a) a set of instructins for each trait
b) instructions on how to make a protein
c) a portion of a strand of DNA
d) all of the answers

DNA ___.
a) is made up of amino acids
b) has a structure like a twisted ladder
c) cannot be repaired it it is mutated
d) all of the answers

In incomplete dominance, ___.
a) a single gene controls many traits
b) genes for a trait are all recessive
c) each allele for a trait has its own degree of influence
d) the environment controls the genes

Watson and Crick ___.
a) studied the amount of each base in DNA
b) took X-ray pictures of DNA
c) made models to determine DNA structure
d) discovered that genes were located on chromosomes

Chemist Rosalind Franklin was able to ___ using X-ray diffraction.
a) splice DNA
b) make a model of DNA
c) create images of DNA molecules
d) calculate the number of genes on DNA

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