BIOLOGY VOL. II
16th Edition
ISBN: 9781308795317
Author: Raven
Publisher: Mcgraw-Hill/Create
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Chapter 12, Problem 6U
a. an alteration of dominance for multiple alleles of a single gene.
b. the presence of multiple alleles for a single gene.
c. the action of one gene on multiple phenotypes.
d. the action of multiple genes on a single phenotype.
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Alleles that show incomplete dominance will represent:
Choose oneAnswer:
A . heterozygotes that have a phenotype intermediate between the dominant and recessive alleles.
B. homozygotes that have a genotype like the recessive allele
C. homozygotes that have a phenotype intermediate between the dominant and recessive alleles.
D. heterozygotes that have a genotype like the dominant allele
On average, what proportion of X-linked genes in the first individual are the same (inherited from a common ancestor) as those in the second individual? a. A male and his mother b. A female and her mother c. A male and his father d. A female and her father e. A male and his brother f. A female and her sister g. A male and his sister h. A female and her brother
If an organism has two different alleles (call the alleles a andb) of a gene,a. its phenotype will be the same as an organism with twoidentical alleles of this gene.b. all of its gametes will contain both the a allele and theb allele.c. it is homozygous for that gene.d. it is heterozygous for that gene.
Chapter 12 Solutions
BIOLOGY VOL. II
Ch. 12 - What property distinguished Mendels investigation...Ch. 12 - The F1 generation of the monohybrid cross purple...Ch. 12 - The F1 plants from the previous question are...Ch. 12 - In a cross of Aa Bb cc X Aa Bb Cc, what is the...Ch. 12 - An organisms __________ is/are determined by its...Ch. 12 - Phenotypes like height in humans, which show a...Ch. 12 - Japanese four oclocks that are red and tall are...Ch. 12 - If the two genes in the previous question showed...Ch. 12 - What is the probability of obtaining an individual...Ch. 12 - Prob. 4A
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- Please helparrow_forward- GENETICSarrow_forwardIn garden pea plants, the yellow seed colour (Y) is dominant over the green seed colour (y). What are the genotypes of heterozygous yellow seeds and homozygous recessive seeds, respectively? Select one: a. yy and Yy b. Yy and YY c. Yy and yy d. yY and yyarrow_forward
- A test cross is used to determinea. the genotype of an organism with a phenotypically dominant trait.b. the genotype of an organism with a phenotypically recessive trait. c. the genotype of an organism showing pleiotropic effects of a gene.d. if a trait is inherited polygenically.arrow_forwardThe color of chickens is determined by interacting loci: AA or Aa give white, aaBB or aaBb give colored, and aabb produce white. Describe the epistatic interactions occurring between these two genes: A. aa is epistatic to B_, bb and bb are epistatic to A_,aa B. A_ is epistatic to B_,bb and bb is epistatic to A_,aa C. None of the abovearrow_forwardIn Manx cats, the alleles "TT" yield a cat with a normal long tail, the alleles "Tt" yield a cat with a short or absent tail, and the alleles "tt" are lethal to the embryo. Predict the genotypes and phenotypes of potential kittens resulting from the mating of two short-tailed cats. a. genotype of male b. genotype of female c. genotypes of offspring d. phenotypes of officinaarrow_forward
- In a certain species of plant loci A, B and C have an additive effect on the colour of the flower. Alleles A, B, and C are dominant and alleles a, b and c are recessive. Knowing that a plant with genotype AAbbCc has a pink flower, which genotype, among the ones listed below, will produce the same phenotype? a. AABBCc b. AaBbCc c. Aabbcc d. aabbccarrow_forwardIn organisms with X and Y chromosomes, many more genes can be found on the X chromosome than on the Y chromosome. In mammals, how might this deviate from traits being expressed, according to Mendel? A. Females might exhibit a mix of traits rather than all dominant or all recessive traits. B. Only females will have the traits resulting from the X-linked genes. C. Females will overproduce some proteins in relation to males’ production levels. D. This will not result in individuals deviating from Mendel’s principles.arrow_forwardIn ABO blood group inheritance, what is the relationship between the alleles IA and IB? a. They are pleiotropic to each other. (pleiotropic means one gene also influences two or more unrelated phenotypes) b. They are incompletely dominant to each other. c. They are codominant to each other. d. B alleles are dominant; A alleles are recessive. e. A alleles are dominant; B alleles are recessive.arrow_forward
- darrow_forwardhelparrow_forwardIf a mouse has a dominant phenotype (P_), how would you determine if it is homozygous (PP) or heterozygous (Pp)? Select one: O a. O b. O c. O d. O e. cross it to a mouse with the dominant trait but a similarly unknown genotype. cross it to a mouse with the recessive trait. cross it to a homozygous dominant mouse. it cannot be determined. cross it to a heterozygous dominant mouse. Oarrow_forward
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