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A space probe discovers a planet inhabited by creatures that reproduce with the same hereditary patterns seen in humans. Three
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CAMPBELL BIOLOGY IN FOCUS-TEXT,AP ED.
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- Below is a pedigree of a human blinding disease. Use this pedigree to answer the following questions. If this is disease has an autosomal recessive inheritance pattern, what is the probability that if individuals IV-5 and III-5 had and offspring it would exhibit the disease? a) 25% b) 33% c) 11% d) 17% e) 6%arrow_forwardDr. Disney has been raising exotic fruit flies for decades. Recently, he discovered a strain of fruit flies that in the recessive condition have baby blue eyes that he designates as bb. He also has another strain of fruit flies that in the recessive condition have pink wings that are designated as pw. He is able to establish flies that are homozygous for both mutant traits.He mates these two strains with each other. Dr. Disney then takes phenotypically wild- type females from this cross and mates them with double recessive males. In the resulting testcross progeny, he observes 500 flies that are of the following makeup:41 with baby blue eyes and pink wings207 with baby blue eyes only210 with pink wings only42 with wild-type phenotype14. Assuming the wild-type alleles for these two genes are b+ and pw+, what is the correct testcross of the F1 flies?A) b+ pw+/b pw ⋅ b pw/b pwB) b+ pw+/b pw ⋅ b pw+/b+ pwC) b+ pw/b pw+ ⋅ b pw/b pwD) b+ pw/b pw+ ⋅ b+ pw+/b pwE) b+ pw+/b pw ⋅ b+ pw/b…arrow_forwardIn human blood chemistry, the I gene directly determines ABO blood antigens and the H gene takes the H-substance precursor and makes the H-substance. IAIO Hh x IBIO Hh. Given the following cross, help me with the question please 17. What type of allele interaction is this, the influence of alleles at gene H versus those at gene I?A) dominance B) recessive C) incomplete dominance D) epistasis 18. What is the likelihood of a child with a type O serotype based on a blood test?A) 0.0 < p < 0.1 D) 0.3 < p < 0.4 G) 0.6 < p < 0.7 J) 0.9 < p < 1.0B) 0.1 < p < 0.2 E) 0.4 < p < 0.5 H) 0.7 < p < 0.8C) 0.2 < p < 0.3 F) 0.5 < p < 0.6 I) 0.8 < p < 0.9arrow_forward
- A homozygous red pigmented female beetle (bb) is bred with a black pigmented male of unknown genotype. It’s unknown if the male homozygous dominant (BB) or heterozygous (Bb) for the pigment trait. The color of their offspring will help identify the genotype of the male. What do you call this method used to determine the genotype of the male beetle? Explain your answer by using Punnett square to show possible offspring genotypes.arrow_forwardIn cattle, the gene for hornless (H) is dominant to the gene for horned (h), the gene for black (B) is dominant to that of red (b), and the gene for white face, or Hereford spotting, (S) is dominant to that for solid color (s). A cow (female) that is heterozygous for all traits is inseminated by a bull (male) of the genotype bbhhSs. What is the probability of obtaining a calf that is a black, hornless bull with Hereford spotting?arrow_forwardConsider the following statement: ‘female, w+w flies have red eyes’. In this example: Group of answer choices 1) w+w is the genotype, and red eyes is the phenotype 2) female is the genotype, and red eyes is the phenotype 3) not enough information provided to determine genotype or phenotype 4) red eyes is the genotype, and w+w is the phenotypearrow_forward
- The term heterozygous means; a) An organism has two different sex chromosomes Ob) An organism was originally twins that fused together in the zygote stage c) An organism has two identical alleles for a given gene d) An organism has two different alleles for a given genearrow_forwardMendel's pea plants were a good choice for studying heredity, because: a) They have lots of easily observable traits that vary in an either-or manner. b) Their mating is uncontrollable. c) There are separate male and female plants. d) The plants are incapable of cross-pollination.arrow_forwardCan you please help answer this question?arrow_forward
- In Border Collies, black coat (B) is dominant to red coat (b). A breeder has a black male that has won numerous awards.T he breeder would like to use the dog for breeding if he is purebred (BB). To learn this information, she testcrosses him with a red female (bb). a) If the black male is BB, what kind of gamete (sperm) can he produce? b) If the red female is bb, what kind of gamete (eggs) can she produce? c) If the black male is Bb, what kind(s) of gametes (sperm) can he produce? d) If any of the puppies are red, what is the father's genotype?arrow_forwardThe data set attached presents the results of a testcross using female flies heterozygous for three traits and male flies, which are homozygous recessive. For simplicity, mutant alleles are shown with letters a, b, and c and wildtype alleles are indicated by a “+” symbol. For this part of the report do the following in order: a) Determine the gene order (which gene is in the middle?)d) Construct a genetic map for the three genes, including the map distances between them. Clearly indicate the logic you followed and show all your calculations. Include the full distance calculations for the two most distanced genes (do not just add the other 2 distances). Ensure the work is neat and clear and does not contain spelling or grammatical errors so that it is understandable. Make sure to double check the solution provided.arrow_forwardIn fruit flies a dominant mutation on the X chromosome causes the eye to be oval instead of round (recessive). If a male with oval eyes has offspring with a female with round eyes, what percentage of the male offspring will have oval eyes? O O O a) 0 b) 25 c) 50 d) 75 e) 100arrow_forward
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