Questions from Genetics


Q: The Mic2 gene in humans is present on both the X and

The Mic2 gene in humans is present on both the X and Y chromosome. Let’s suppose the Mic2 gene exists in a dominant Mic2 allele, which results in normal surface antigen production, and a recessive mic...

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Q: Duroc Jersey pigs are typically red, but a sandy variation is

Duroc Jersey pigs are typically red, but a sandy variation is also seen. When two different varieties of true-breeding sandy pigs were crossed to each other, they produced F1 offspring that were red....

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Q: As shown in Figure 4.17, coat color in rodents

As shown in Figure 4.17, coat color in rodents is governed by a gene interaction. An albino rat is crossed to a black rat. The ratio of their offspring is 1 agouti : 1 black : 2 albino. What are the g...

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Q: Summer squash exist in long, spherical, or disk shapes.

Summer squash exist in long, spherical, or disk shapes. When a true-breeding long-shaped strain was crossed to a true-breeding disk-shaped strain, all of the F1 offspring were disk-shaped. When the F1...

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Q: Figure 5.1 describes an example of a maternal effect gene

Figure 5.1 describes an example of a maternal effect gene. Explain how Sturtevant deduced a maternal effect gene based on the F2 and F3 generations. From Figure 5.1:

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Q: Explain how the use of radiolabeled amino acids in this procedure helped

Explain how the use of radiolabeled amino acids in this procedure helped to reveal the genetic code.

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Q: What is the phenotype of a female cow that is heterozygous?

What is the phenotype of a female cow that is heterozygous?

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Q: Chapter 21 describes a blotting method known as Northern blotting that is

Chapter 21 describes a blotting method known as Northern blotting that is used to determine the amount of mRNA produced by a particular gene. In this method, the amount of a specific mRNA produced by...

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Q: A variegated trait in plants is analyzed using reciprocal crosses. The

A variegated trait in plants is analyzed using reciprocal crosses. The following results are obtained:

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Q: As mentioned in Experimental Question E11, red eyes is the wildtype

As mentioned in Experimental Question E11, red eyes is the wildtype phenotype. Several different genes (with each gene existing in two or more alleles) are known to affect eye color. One allele causes...

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