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 21RQ
Which of the following situations does not follow the Law of Independent Assortment?
- A blond man and a brunette woman produce three offspring over time, all of who have blond hair
- A white cow crossed with a brown bull produces roan cattle
- Mating a hog with a sow produces six female piglets
- Men are more likely to experience hemophilia than women.
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Which of the following terms is used to describe the offspring of a cross of two true-breeding parents that differ in one or more traits?
Pure line
Homozygous
Reciprocal
Hybrid
Widow's peak is dominant to straight hair line. What is the chance of producing a child with a straight hair line from parents that both are heterozygotes?
75% (3 out of 4)
50% (2 out of 4)
25% (1 out of 4)
0% (no chance)
100% (4 out of 4)
Which of the following blood types in progeny may be produced by a mating between a man with blood type AB and a woman with blood type O? Mark all that apply.
Type A
Type B
Type AB
Type O
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Straight hair is dominant to curly hair. Which parents will give a 25% chance of having offspring with curly hair? One heterozygous straight and one homozygous curly. Two heterozygous straight hair, Two homozygous straight hair One homozygous curly and one homozygous straightarrow_forwardwhich of the following is the example of Codominance A plant with green seeds is crossed with a plant with white seeds: the offspring produce white seeds individuals who are heterozygous for sickle cells disease produce both normal and sickle cell shaped red blood cells A red snapdragon crossed with a white snapdragon produces Pink Snap dragon All the choices given are correctarrow_forwardHemophilia is an X-linked disorder that affects the body’s ability to create blood clots. The allele for normal blood clotting, XH, is dominant over the allele for hemophilia, Xh. An unaffected daughter from the above cross married a man who does not have hemophilia. Determine the probability of their offspring being A daughter with hemophilia A daughter without hemophilia A son with hemophilia A son without hemophilia Express your answer as a phenotypic ratio. Number: Answer Answer Answer Answer Phenotype: Affected female Unaffected female Affected male Unaffected malearrow_forward
- A mother with blood type AB has a child with blood type AB. Which of the following males cannot be the father of this child? Male with blood type A Male with blood type 0 Male with blood type AB a and b, but not c b and c, but not aarrow_forwardHaving two different harmful disease alleles at the same locus is called a double heterozygote compound heterozygote double homozygote compound homozygotearrow_forwardA pea plant is heterozygous for both pod shape and color. I is the allele for dominant, inflated pod; i is the allele for recessive, constricted pod. G is the allele for dominant, green pod; g is the allele for recessive, yellow color characteristic. Suppose this plant is crossed with a homozygous pea with inflated, green pod, what will be the possible genotype of the offspring? Identify the: Parents’ genes?Parents’ traits?Genes (genotype)?Shape, color? (phenotype)?Genotypic ratio?Phenotypic ratio?arrow_forward
- A form of hemophilia is caused by a sex-linked (X-linked) recessive gene. A phenotypically normal woman whose father had hemophilia marries a phenotypically normal man with no family history of hemophilia. What is the probability that their first son will have hemophilia? 1/4 1 3/4 0 1/2arrow_forwardThe phenotypes of individuals that are homozygous dominant and heterozygous for a gene with two alleles, one dominant and one recessive, will be the same. True Falsearrow_forwardWhich of the following statements describes Mendel's law of independent assortment? The inheritance of one characteristic does not affect the inheritance of another characteristic. The inheritance pattern of one offspring will not affect the characteristics in a sibling. The inheritance of one characteristic will determine the inheritance of other characteristics. Only one characteristic is inherited in each generation. Submit Request Answer Part B In dogs, coat color (B or b) and hearing (D or d) are both genetically determined. If a dog is genotype BBDd, what gametes could it make? Select all that apply. bd BB Dd Bd BD bDarrow_forward
- Unattached earlobes is dominant to attached earlobes. Two parents, both with unattached earlobes, had a child with attached earlobes. What are the chances that their next child will have attached earlobes? 25% 50% 0% cannot be determined from this infoarrow_forwardTrue False One heritable factors such as recessive form could mask the presence of the alternate allele which is in dominant form A Punnett square is used to predict the genotype and the phenotype of an offspring after a genetic cross. Mendel's law of dominance states that "when parents with pure and contrasting traits are crossed together, only one form of trait appears in the next generation." A homozygous individual could have a "Ee" as genotype DNA has a ribose sugar. G..pdf rerarrow_forwardIn poodles black is dominant to white. A black poodle is crossed with a ehite poodle. In a litter of four, all of the puppies are black. What is the best conclusion? the black poodle is definitely homozygous the black poodle is probably homozygous the black poodle is definitely heterozygous the black poodle isprobably heterozygousarrow_forward
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