Concept explainers
A pea plant has the genotype
a.
b.
c.
d.
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Genetics: Analysis and Principles
- An individual with two different alleles at a locus is a(n) Group of answer choices A. clone B. hemizygote C. homozygote D.heterozygotearrow_forwardMatch the terms with the best description. ___ dihybrid cross a. bb ___ monohybrid cross b. AaBbAaBb ___ homozygous condition c. Aa ___ heterozygous condition d. AaAaarrow_forwardRefer to question 4. Assuming complete dominance, the F2 generation will show a phenotypic ratio of _______. a.3:1 b.9:1 c. 1:2:1 d. 9:3:3:1arrow_forward
- What is the probability of obtaining an individual with the genotype bb from a cross between two individuals with the genotype Bb? a. ½ b. ¼ c. ⅛ d. 0arrow_forwardWhat is the probability of producing a child that will phenotypically resemble either one of the two parents in the following two crosses?a. Aa Bb Cc Dd × aa bb cc ddb. aa bb cc dd × AA BB CC DDarrow_forwardThe pea plants used in Mendel’s genetic inheritance studies were diploid, with 14 chromosomes in somatic cells. Assuming no crossing over events occur, how many unique gametes could one pea plant produce? a. 28 b. 128 c. 196 d. 16,384arrow_forward
- Assuming no gene linkage, in a dihybrid cross ofAABB x aabb with AaBb F1 heterozygotes, what is the ratio of the F1 gametes (AB, aB,Ab, ab) that will give rise to the F2 offspring? a. 1:1:1:1 b. 1:3:3:1 c. 1:2:2:1 d. 4:3:2:1arrow_forwardwhat is the typical expected ratio of a dihybrid cross between two heterozygote parentals, in the F2 generation? A. all parental phenotype B. all recombinant phenotype C. 3:1 D. 9:3:3:1 arrow_forwardTwo summer white squashes with genotype WwYy were crossed (W= white color, Y=yellow color, w and y= green color) W is epistatic to Y and y. What would be the different colors of summer squashes obtained out of the above cross? (2 pts.) A. 12 white: 3 yellow:1 green B. 12 yellow: 3 white: 1 green C. 12 green: 1 white: 3 yellow D. 12 yellow: 3 green: 1 whitearrow_forward
- In pea plants, having yellow peas (Y) is dominant over having green peas (y). If you had a yellow pea plant, what genotype(s) could it have? you can chose multiple. A. YY B. Yy C. yyarrow_forwardUsing the information in the Punnett square that showing a cross between two parents, how would we refer to the parents and the offspring? a. One parent homozygous, one is heterozygous, the offspring are homozygous b. One parent is homozygous dominant, one parent is homozygous recessive, the offspring are heterozygous c. One parent is homozygous dominant , one parent is heterozygous recessive, the offspring are homozygous dominant d. One parent is heterozygous dominant, one is heterozygous recessive, the offspring are heterozygous dominant P generation: BB x bb Complete dominance: B = black rat b = white ratarrow_forwardWe know that human blood type is determined by a three-allele system at a single locus. For the following, state whether the child mentioned can actually be produced from the marriage. An O child from the marriage of an AB to an A Select one: O True O Falsearrow_forward