In the case of Recessive Lethal Alleles, what copy number of an allele is lethal? O1 2 None of the above
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- Which of the following terms means “many genes”?a. polymorphismb. polygenyc. polypeptided. multiple allelesWhich of the following could denote a recessive allele? Group of answer choices A. A B. r C. T-Q D. I-B E. all the answer choices are correctWhich of the following is not an example of a wild-type allele?a. Yellow-flowered elderflower orchidb. Red-flowered elderflower orchidc. A gray elephantd. An albino (white) elephant
- The gene for eye pigmentation has __________ alleles. Group of answer choices A. 1 B. 3 C. 5 D. 2 E. 4Righted handedness (R) is dominant to left handedness (r). A homozygous dominant person is crossed with a homozygous recessive person. Which of the following correctly describes this cross? A. RR x RR B. RR x rr C. Rr x Rr D. rr x rr5. Brown eye color is an example of a while heterozygous is an example of a 1. Genotype; phenotype 2. Phenotype; genotype
- Can someone explain to me why lethal alleles are named "recessive" alleles? My understanding is that if MmXMm then I will get a 2:1 because MM is lethal while Mm causes manx in cats, and mm is non-lethal.From a cross of heterozygotes, which of the following phenotypic ratios suggests a lethal allele in the homozygous dominant? (ratios given as dominant: recessive phenotypes) Group of answer choices 2:1 1:2:1 3:1 3:060 black beans and 40 white beans into the baggie. Let the black beans represent the dominant allele A, and the white beans represent the recessive allele a, in the gene pool
- Which of the following terms refers to variations in a gene?a. locus d. allelesb. carrier e. None of these are correct.c. dominanceThe process by which you get a different assortment of your 4 grandparents' genes (as compared to your siblings) is called Group of answer choices point mutation general mutation random/independent assortment crossover effect inheritanceSuppose we have a true breeding parental cross for a disease with an autosomal dominant mode of inheritance. Further, the cross is between a parent with an DD genotype and a parent with a dd genotype, where D = dominant allele, d = recessive allele. How many phenotype classes will be observed in the F1 population? 4 2 0 (all offspring will die). 3 1
