True / False Questions (Questions 51-60, 0.25% each, select A for true, select B

Question

True / False Questions (Questions 51-60, 0.25% each, select A for true, select B for false) 51. Phenotype for a given trait can be influenced by an environmental factors such as temperature? 52. . Mendel's law of segregation states that two alleles for each trait unite in a specific, predictable manner during gamete formation 53. When examining a pedigree, a father to son transmission for a disease that manifests itself in every generation is an indication that the pattern of inheritance is likely to be autosomal dominant. 54. Several single-gene disorders are more common in some populations of people than in others. 55. Multifactorial inheritance is when a phenotype arises as a result of multiple genes interacting with each other and/or the environment. 56. Sister chromatids are identical chromosomes, duplicated during S-phase and stillattached to each other. 57. During the S and Gr stages of interphase, the centrosomes replicate, producing two centrosomes that remain in extrèmely close proximity. 58. Two genes are considered linked when F2 progeny more commonly show the recombinant genotype 59. Chi-square and other statistical analyses are used to determine whether or not two genes assort dependently 60. When comparing a gene located on chromosome 12 and another on chromosome 21 these are said to be syntenic

Explanation / Answer

51.

Phenotype for a given trait can be influenced by an environmental factors such as temperature.

True.

52.

Mendel’s law of segregation states that two alleles for each trait unite in a specific predictable manner during gamete formation.

True.

53.

When examining a pedigree, a father to son transmission for a disease that manifests itself in every generation is an indication that the pattern of inheritance is likely to be autosomal dominant.

False

54.

Several single gene disorders are more common in some populations of people than in others.

True

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