22) According to Mendel\'s law of segregation, A) gametes are diploid B) gametes

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22) According to Mendel's law of segregation, A) gametes are diploid B) gametes have one allele copy for each gene C) two alleles segregate into each gamete D) more gametes carrying the dominant allele are produced han gametes carrying the recessivw 22) allele allele are produced than gametes carrying the recessive 23) Attached earlobes are recessive to free earlobes. What genotypic ratio is expected when an individual with attached earlobes mates with an individual heterozygous for free earlobes? 23) A) 2:1 B) 121 C) 3:1 24) Mendel crossed purebred purple-flowered plants with purebred white-flowered plants, and all of 24)_ the resulting offspring produced purple lowers. The offspring are alland the allele for purple flowers is A) homozygotes... .recessive C) heterozygotes...recessive D) heterozygotes...dominant 25) An individual heterozygous for cystic fibrosis 25) (A) is a carrier B) has cystic fibrosis C) cannot have children with cystic fibrosis D) will have children who are all carriers of cystic fibrosis 26) What is the key to the recognition of incomplete dominance? A) The heterozygote expresses the phenotype of both homozygotes. B) The phenotype of the heterocysote falls between the phenotypes of the homouygotes (ex pink colored flowers) C) The alleles affect more than one trait D) The trait exhibits a continuous distribution. 27 An individual with (naturally) arly hair and an individual with (naturally) straight hair mate, all of their offspring have (naturally) wavy hair. What is the relationship between the alleles for hair texture? A) wavy hair dominant to both straight and curly hair )incomplete dominance C) codominance D) pleiotropy 25) Attached earlobes are recessive to free earlobes. What is the probubility of having a child with 28) attached earlobes when an individual with attached earlobes mates with an individual heterozygous for free earlobes? C)0% D) 50% B)25% A)75% 29) 29) In humans, the presence or absence of dimples is a trait controlled by a single gene. What is the genotype of an individual who is heterozygous for dimples? orC D) DD B) dd A) DI

Explanation / Answer

Answers:

22)

Option B

gametes have one allele copy for each gene

23)

Option D

1:1

24)

Option D

heterozygotes, dominant

25)

Option A

is a carrier

26)

Option B

the phenotype of the heterozygote falls between the phenotypes of the homozygotes (ex pink colored flowers)

27)

Option B

incomplete dominance

28)

Option D

50%

29)

Option C

Dd

Yes, your answers are all correct.

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