Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 12, Problem 19RQ
How many different offspring genotypes are expected in a trihybrid cross between parents heterozygous for all three traits when the traits behave in a dominant and recessive pattern? How many
- 64 genotypes: 16 phenotypes
- 16 genotypes; 64 phenotypes
- 8 genotypes; 27 phenotypes
- 27 genotypes; 8 phenotypes
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Chapter 12 Solutions
Biology 2e
Ch. 12 - Figure 12.5 In pea plants, round peas (R) are...Ch. 12 - Figure 12.6 What are the genotypes of the...Ch. 12 - Figure 12.12 What ratio of offspring would result...Ch. 12 - Figure 12.16 In pea plants, purple flowers (P) are...Ch. 12 - Mendel performed hybridizations by transferring...Ch. 12 - Which is one of the seven characteristics that...Ch. 12 - Imagine you are performing a cross involving seed...Ch. 12 - Consider a cross to investigate the pea pod...Ch. 12 - A scientist pollinates a true-breeding pea plant...Ch. 12 - The observable traits expressed by an organism are...
Ch. 12 - A recessive trait will be observed in individuals...Ch. 12 - If black and white true-breeding mice are mated...Ch. 12 - The ABO blood groups in humans are expressed as...Ch. 12 - In a mating between two individuals that are...Ch. 12 - If the allele encoding polydactyly (six fingers)...Ch. 12 - A farmer raises black and white chickens. To his...Ch. 12 - Assuming no gene linkage, in a dihybrid cross of...Ch. 12 - The forked line and probability methods make use...Ch. 12 - How many different offspring genotypes are...Ch. 12 - Labrador retriever's fur color is controlled by...Ch. 12 - Which of the following situations does not follow...Ch. 12 - Describe one of the reasons why the garden pea was...Ch. 12 - How would you perform a reciprocal cross for the...Ch. 12 - Mendel performs a cross using a true-breeding pea...Ch. 12 - Calculate the probability of selecting a heart or...Ch. 12 - The gene for flower position in pea plants exists...Ch. 12 - Use a Punnett square to predict the offspring in a...Ch. 12 - Can a human male be a carrier of red-green color...Ch. 12 - Why is it more efficient to perform a test cross...Ch. 12 - Use the probability method to calculate the...Ch. 12 - Explain epistatis in terms of its Greek-language...Ch. 12 - In Section 12.3, ''Laws of Inheritance," an...Ch. 12 - People with trisomy 21 develop Down’s syndrome....Ch. 12 - A heterozygous pea plant produces violet flowers...
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- a mother is type a phenotype and two alleles are heterozygous father is blood type O (phenotype) Complete the punnett square to expect genotypes and phenotypes of their offsprings. Mother Father From the punnett square, 4. The probability of offsprings with blood type A is . Answer as a percentage. 5. The probability of offsprings with blood type B is . Answer as a percentage. 6. The probability of offsprings with blood type AB is . Answer as a percentage. 7. The probability of offsprings with blood type O is . Answer as a percentage.arrow_forwardThere is a species of fish in which homozygous recessive (rr) individuals are Yellow and homozygous dominant (RR) individuals are Red. Color in this species of fish exhibits incomplete dominance. If we mate a homozygous dominant individual with a heterozygous individual, what is the phenotypic ratio of the offspring? Group of answer choices 2 Red : 2 Orange. 4 Red. 3 Red : 1 Yellow. 1 Red : 2 Orange : 1 Yellow.arrow_forwardA fish with red eyes and yellow scales is crossed to a pure-breeding fish with brown eyes and orange scales, resulting in offspring having red eyes and yellow scales (50%) or brown eyes and yellow scales (50%). You cross the red eye/yellow scale offspring together, and the resulting offspring are as follows. How are these traits likely inherited Number of offspring 676-yellow/red 224-red/orange 224-brown/yellow 76-brown/orangearrow_forward
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