30) Apindividual who ls homorygsus A) carries two copies of the same alele for a

Question

30) Apindividual who ls homorygsus A) carries two copies of the same alele for a gem B) carries two different alleles for a gene C) expresses the recessive trait D) expresses the dominant trait 30 31) W s) which of thee crosses will produce only heterozygous offspeing? C)AA Aa dme A) Aa x Aa 31) 32) AaBb produces four different gametes in equal proportions(AI, 3) 32) What name is given to the specific Jocation of a gme on a A) genotype B) locus C) phenotype D) allele 33) An individual with the genotype Ab, aB, and ab). This is a demonstration of A) the chromosomal theory of inheritance C) Mendel's principle of segregation B) Mendels law of independent assortment Di linkage 34 34) The is most commonly found in nature. A) wild-type trait B) recessive trait O) parental type D) dominant trait 35) 35) Many human traits, such as our performance on intelligence tests or our susceptblity to heart disease, are A) determined only by our genes B) not affected by our genes C) determined by genes in some people and by the environment in other people D) influenced by both genes and the environment 36) genes violate Mendel's principle of independent assortment. C) Codominant 36) D) Linked B) Pleiotropic A) Recessive 37) 37) DNA and RNA are polymers composed of- B) carbohydrate -monomers. D) amino acid C) nucleotide A) fatty acid 38) 38) The backbone of DNA consists of A) paired nucleotides B) a repeating sugar-nucleotide-sugar-nucleotide pattern C) a repeating sugar-phosphate-sugar-phosphate pattern nitrogenous bases 39 which is found only in DNA. B) uracil. thymine instead of 39) RNA contains the base A) thymine... uraci C) a deoxyribose sugar....a ribose sugar D) uracil.. guanine 40) D)30% 40) If adenine makes up 20% of the bases in a DNA double helix, what percent of the bases is thymine? C)40% B)60% A)20% 41) and guanine pairs with B) thymine... cytosine D) cytosine. thymine 41) In a DNA double helix, adenine pairs with A) guanine... adenine uradil... cytosine

Explanation / Answer

30 A) carries two copies of same allele.

31.B) Aa X Aa

32. B) locus

33.B)Mendel's law of independent assortent

34. A) wild type trait

35D)

36. D) linked genes

37.C) nucleotide

38.C) nucleotide

39.B) uracil..thyamine

40. D) 30%

41. B) thymine-cytosine

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