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Genetics

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1.
1 point
Changes in DNA sequences that affect genetic information are known as
2.
1 point
A nucleotide does NOT contain
3.
1 point
The number of possible codons in the genetic code is
4.
1 point
According to Chargaff's rule of base pairing, which of the following is true about DNA?
5.
1 point
Organisms that have two identical alleles for a particular trait are said to be
6.
1 point
What happens to the chromosome number during meiosis?
7.
1 point
In eukaryotes, nearly all the DNA is found in the
8.
1 point
In prokaryotes, DNA molecules are located in the
9.
1 point
A single-base mutation is a messenger RNA molecule could transcribe the DNA sequence CAGTAT into
10.
1 point
During which phase of meiosis is the chromosome number reduced?
11.
1 point
Which of the following describes RNA?
12.
1 point
Before DNA could definitively be shown to be the genetic material in cells, scientists had to show that it could
13.
1 point
A pink-flowered Mirabilis plant (RW) is crosses with a white-flowered Mirabilis (WW). What is the chance that a seed from the cross will produce a red-flowered plant?
14.
1 point
In messenger RNA, each codon specifies a particular
15.
1 point
The probability of flipping a coin twice and getting heads is
16.
1 point
The two “backbones” or “rails” of the DNA molecule consist of
17.
1 point
A Punnett square is used to determine the
18.
1 point
The process by which the genetic code of DNA is copied into a strand of RNA is called
19.
1 point
Which of the following statements about the genetic code is true?
20.
1 point
In eukaryotic chromosomes, DNA is tightly coiled around proteins called
21.
1 point
The bonds that hold the two strands of DNA together come from?
22.
1 point
How does RNA differ from DNA?
23.
1 point
The process of making proteins on the ribosome based on the instructions from messenger RNA is called
24.
1 point
Unlike mitosis, meiosis in male mammals results in the formation of
25.
1 point
Different forms of a gene are called
26.
1 point
A situation in which a gene has more than two alleles is known as
27.
1 point
The main enzyme involved in linking individual nucleotides into DNA molecules is
28.
1 point
During replication, which sequence of nucleotides would bond with the DNA sequence TATGA
29.
1 point
Two pink-flowered plants are crossed. The offspring flower as follows: 25% red, 25%, white, and 50% pink. What pattern of inheritance does flower color in these flowers follow?
30.
1 point
The physical characteristics of an organism are called its
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