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Genetics2013-14

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1.
1 point
In eukaryotes, nearly all the DNA is found in the
2.
1 point
What enzyme works to add DNA to the ends of chromosomes in rapidly dividing cells such as those found in an embryo, to prevent genes from being lost during replication?
3.
1 point
The main enzyme involved in linking new individual nucleotides into DNA molecules during DNA replication is
4.
1 point
The physical characteristics of an organism are called its
5.
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?
6.
1 point
In eukaryotic chromosomes, DNA is tightly coiled around proteins called
7.
1 point
The two “backbones” or “rails” of the DNA molecule consist of
8.
1 point
The SRY gene is located on the Y chromosome. This chromosome and its homologous partner chromosome called X are together knows as
9.
1 point
A nucleotide does NOT contain
10.
1 point
What determines the color of western white butterflies wings?
11.
1 point
The bonds that hold the two strands of DNA together come from?
12.
1 point
What happens to the chromosome number during meiosis?
13.
1 point
Which of the following forms a DNA base pair with thymine?
14.
1 point
The probability of flipping a coin twice and getting heads both times is
15.
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?
16.
1 point
Organisms that have two identical alleles for a particular trait are said to be
17.
1 point
DNA replication results in two DNA molecules,
18.
1 point
The principles of probability can be used to
19.
1 point
Variation in human skin color is an example of
20.
1 point
In what way is DNA like a book?
21.
1 point
During which phase of meiosis is the chromosome number reduced?
22.
1 point
Different forms of a gene are called
23.
1 point
Unlike mitosis, meiosis in male mammals results in the formation of
24.
1 point
Gregor Mendel removed the male parts from the flowers of some plants in order to
25.
1 point
According to Chargaff's rule of base pairing, which of the following is true about DNA?
26.
1 point
During replication, which sequence of nucleotides would bond with the DNA sequence TATGA?
27.
1 point
A situation in which a gene has more than two alleles is known as
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