09 LS: The characteristics of an organism are a result of inherited traits received from parent(s)
Quiz by Casey Dunham
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14 questions
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- Q1In chickens, black feathers (B) are dominant over red feathers (b). A male with red feathers is mated to a female with one allele for black feathers and one allele for red feathers. What percentage of the offspring is expected to have red feathers?50%25%0%75%30s
- Q2The pedigree shows the inheritance pattern of a genetic disease that results from the recessive allele (t). Based on the characteristics of generation II, what are all the possible genotypes for individual 2?ttTtAll possible - TT, Tt, & ttBoth TT & Tt30s
- Q3Pituitary dwarfism is a rare recessive trait in some dog breeds, including German Shepherds. The pituitary gland is necessary for normal growth and development. In dogs with pituitary dwarfism, the gland does not function properly. Most dogs affected with this condition will not live as long as dogs without the condition. Dobbie is a male German Shepherd that does not have pituitary dwarfism. What experiment could the breeder do that gives the highest possibility of determining Dobbie’s genotype?Mate Dobbie to a female with two dominant alleles.Mate Dobbie to a female with two recessive alleles.Mate Dobbie to a female with one dominant allele and one recessive allele.No experiment is necessary because Dobbie’s genotype is already known.30s
- Q4In sheep, the allele for brown eye color is dominant over the allele for blue eye color. A farmer has mated a blue-eyed male to a female with two alleles for brown eyes. What percent of offspring will have brown eyes?50%100%25%75%30s
- Q5Mendel proposed three laws for genetics. Define "Law of Segregation."When looking at multiple traits, usually a trait is passed to offspring without regard to any other trait.In sexual reproduction, an individual inherits two alleles for a trait, one from each parent. This pair of alleles separates when sex cells are formed.Many genetic traits exist in one of two forms: dominant or recessive. A dominant allele masks the recessive allele and is always expressed.30s
- Q6Mendel proposed three laws for genetics. Define "Law of Dominance."Many genetic traits exist in one of two forms: dominant or recessive. A dominant allele masks the recessive allele and is always expressed.In sexual reproduction, an individual inherits two alleles for a trait, one from each parent. This pair of alleles separates when sex cells are formed.When looking at multiple traits, usually a trait is passed to offspring without regard to any other trait.30s
- Q7Mendel proposed three laws for genetics. Define "Law of Independent Assortment."When looking at multiple traits, usually a trait is passed to offspring without regard to any other trait.In sexual reproduction, an individual inherits two alleles for a trait, one from each parent. This pair of alleles separates when sex cells are formed.Many genetic traits exist in one of two forms: dominant or recessive. A dominant allele masks the recessive allele and is always expressed.30s
- Q8Using the diagram below, which of the following best explains the green pea seed in the f2 generation?The f1 parent generation passed on only yellow alleles.The f1 generation parents are both heterozygous (have two different alleles) for seed color.The f1 generation parents are both homozygous (have two of the same allele) for seed color.The yellow pea seed allele is recessive to green.30s
- Q9In the genetic pedigree, person W and his wife are considering having another child. What is the percent chance that this child will develop sickle cell disease?100%25%50%0%30s
- Q10Which person on the pedigree could not pass the allele for sickle cell disease to his/her offspring?VXYZ30s
- Q11Black fur is dominant to brown fur. Would the genotype (bb) have a phenotype of black or brown fur?BlackBrown30s
- Q12Black fur is dominant to brown fur. Would the genotype (Bb) have a phenotype of black or brown fur?BrownBlack30s
- Q13Black fur is dominant to brown fur. Would the genotype (BB) have a phenotype of black or brown fur?BlackBrown30s
- Q14Black fur is dominant to brown fur. Would the genotype (bB) have a phenotype of black or brown fur?BrownBlack30s
