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7. The visible or functional characteristics of an individual usually represente

ID: 217305 • Letter: 7

Question

7. The visible or functional characteristics of an individual usually represented in a word or short descriptive phase is known as the.. a. genotype b. locus c phenotype d. allele e. genome is born with an autosomal recessive (e.g. bb) trait or disease he/she could have both parents which are normalfe g.88 or Bb) a. True b. False 9. Which of the following statements is/are TRUE regarding human autosomal dominant traits or diseases? a. They are more common than autosomal recessive traits. b. "8B" or "Bb" genotypes are affected, while "bb" genotypes are not affected c. Two affected parents (E.g. 8b X Bb) can produce normal children. (E.g. bb) d. all of the above statements are true e. none of the above statements are true 10.-14. Matching Section: Match each of the following terms associated with "Extending the Range of Mendelian Genetics", with their correct definition. 10. Multiple Alleles a. a trait in which the dominant allele may not always lead to the dominant phenotype in a heterozygote 11. Codominance b. a trait controlled by several alleles 12. Incomplete dominance c. a trait that is governed by two or more genes having different alleles 13. Incomplete penetrance d. a trait in which more than one allele is fully expressed 14. Polygenetic Trait e. a trait in which the heterozygote has a phenotype intermediate between that of either homozygote 15. Which of the following statements is/are TRUE regarding polygenetic traits? a. Occurs when a trait is governed by two or more genes having different alleles b. Each recessive allele has a quantitative effect on the phenotype C. d. A and 8 are both true statements regarding polygenetic traits e. A and C are both true statements regarding polygenetic traits

Explanation / Answer

7.. C. phenotype, is the functional representation for genotype of particular gene sequence.

8..A. true. In autosomal recessive condition is the disease condition is arise if both the recessive allele is present (bb). Hence in autosomal dominant (BB) or heterozygous condition (Bb) do not have any sign of disease or are absolutely normal.

9..A..true. autosomal dominant condition is more common. The disease condition is shown even in heterozygous form (Bb). So the typical ration of autosomal dominant condition is 3:1 (three disease condition and one normal recessive condition)

   B..true. one singal dominant allele can result in disease condition in autosomal dominant inheritance.

C..true. two affected parent (Bb and Bb) can produce one normal bb child.

D..all of the above sentence are true.

10. multiple alleles           d. a trait in which one than two allele is fully expressed

Incomplete dominance e. a trait in which the heterozygous has a phenotype intermediate between that of either homozygous.

Codominance                   a. a trait in which the dominant allele will not always leads to dominant phenotype in heterozygous

Incomplete penetrance b. a trait control by several alleles

   Polygenic trait               C. a trait is govern by two or more genes having different alleles

(as per the chegg policy I can answer 4 question)

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