In the Punnett square above, the parents each give one allele to offspring. This is an example of Mendel's Law of
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Question 2
2.
During gamete formation, genes for different traits on different chromosomes separate without influencing each other’s inheritance. This statement best describes the...
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Question 3
3.
Suppose a male dog has the genotype BBgg, which of the following is true regarding the alleles found in his sperm?
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Question 4
4.
Cystic fibrosis causes a buildup of mucus in the lungs. An individual can be a carrier of Cystic Fibrosis and have no idea. If one parent has cystic fibrosis (CF) and the other is not and is not a carrier, none of the children will have CF. This demonstrates Mendel's law of
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Question 5
5.
In the 1860s Gregor Mendel performed numerous dihybrid crosses between pea plants. Dihybrid crosses involve the study of the inheritance patterns related to two different traits. In guinea pigs the allele for black fur (B) is dominant over the allele for brown fur (b), and the allele for short fur (F) is dominant over the allele for long fur (f). What percentage of the offspring from a BbFf x bbff cross would be expected to be heterozygous for both traits?
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Question 6
6.
3 Tomato plants usually have hairy stems. Hairless stems are present in tomato plants that are homozygous recessive for this trait. If the stem characteristics are determined by a single gene, what is the expected outcome of crossing two tomato plants that are heterozygous for hairy stems?
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Question 7
7.
In 1917 the biologist Thomas Hunt Morgan conducted studies in which he kept some caterpillars in the dark and placed some others under red, green, or blue lights. Exposure to red light produced butterflies with brightly colored wings. Exposure to green light resulted in dark-colored wings. Exposure to blue light or no light resulted in pale-colored wings. What was the most likely conclusion of Morgan’s research?
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Question 8
8.
All the genetic information necessary for the growth and development in a sexually reproducing animal is present in
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Question 9
9.
Which three processes usually result in the greatest variety of possible gene combinations?
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Question 10
10.
In pea plants, purple is dominant to white. A heterozygous purple plant is crossed with a white plant. Drag the alleles to the appropriate spot in the Punnett square.