Part I. Multiple cholce. Select the option that best answers the statement. 1. P

Question

Part I. Multiple cholce. Select the option that best answers the statement. 1. Pleiotropy represents an extension to Mendel's principles because: a. It is observed whenever multiple alleles for a gene exist in the population b. One trait is determined by two or more genes, resulting in altered genotypic ratios in the Fa c. It occurs whenever environmental variation alter the observed phenotypes of particular genotypes d. Two linked genes will segregate as a single unit rather that assort independently e. It occurs whenever lethal alleles result in altered ratios of phenotypes in the F 2. Regarding the concept of deductive reasoning: a. General knowledge can be used to derive specific expectations b. A set of isolated observations can be combined to reach a generalized statement c. Logical conclusions are opposite to the principle of parsimony d. Can only be applied to interpret the results of observational tests e. Represents the only method of logical inference 3. For the diagram on the right, which formula best describes its genetic content? a. 2n + 1=11 b. 2n-1 13 c. 3n-1=11 d. 3n +1-12 e. 4n+ 1 11 Part II. True or False. For each statement indicate whether it is true or false: If you select false, briefly modify the underlined section so that the whole statement will be true 1. The term homoplasy refers to a trait observed in species that share a recentTrue False cestor but that may have diversified to adapt to different environments 2. If a set of reciprocal crosses between two pure lines generates different True False phenotypic ratios among the sexes in the offspring, we can conclude the trait examined is not located on an autosomal chromosome 3. Two genes located on the same chromosome will always be genetically linked to each other True False

Explanation / Answer

1.
Option C is correct.
Pleiotropy = A single mutation showing multiple phenotypes.
The extent of a mutant's phenotype can depend upon its environment.
For example, one of the phenotypes shown by pleiotropic mutant can be nullified by a special environment.

2.
Option D is correct.
Deductive reasoning starts with a premise. It moves from generalized principles to a specific conclusion.

3.
Option C is correct.
There are triplets of four sets (One chromosome in one of the triplet is missing)

T/F.
1. False.
Homoplasy refers to a character shared by a set species but that character is absent in their common ancestor.

2. True
A sex-linked trait shows different results in reciprocal crosses.

3. False.
Genes that are located farther apart on the same chromosome can assort independently.

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.