EBK HUMAN BIOLOGY
11th Edition
ISBN: 9780100545939
Author: MCMILLAN
Publisher: YUZU
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Textbook Question
Chapter 19, Problem 2SQ
A heterozygote has _____.
- a. only one of the various forms of a gene
- b. a pair of identical alleles
- c. a pair of contrasting alleles
- d. a haploid condition, in genetic terms
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Chapter 19 Solutions
EBK HUMAN BIOLOGY
Ch. 19 - Define the difference between (a) gene and allele,...Ch. 19 - Prob. 2RQCh. 19 - What is probability, and how is it applied in...Ch. 19 - What is independent assortment? Does independent...Ch. 19 - Alleles are ___________. a. alternate forms of a...Ch. 19 - A heterozygote has _____. a. only one of the...Ch. 19 - Prob. 3SQCh. 19 - Offspring of a cross AA aa are ______. a. all AA...Ch. 19 - Prob. 5SQCh. 19 - Prob. 6SQ
Ch. 19 - Which statement best fits the principle of...Ch. 19 - Prob. 8SQCh. 19 - Prob. 9SQCh. 19 - Prob. 10SQCh. 19 - One gene has alleles A and a. Another has alleles...Ch. 19 - Still referring to Problem 1, what will be the...Ch. 19 - Go back to Problem 1, and assume you now study a...Ch. 19 - The young woman shown at right has albinismvery...Ch. 19 - When you decide to breed your Labrador retriever...Ch. 19 - The ABO blood system has been used to settle cases...Ch. 19 - Prob. 7CTCh. 19 - A man is homozygous dominant for ten different...Ch. 19 - Prob. 9CTCh. 19 - Bill and Marie each have flat feet, long...Ch. 19 - You decide to breed a pair of guinea pigs, one...
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- Human sex-linked disorders in which male children are affected and female children are carriers are carried on the ________ chromosome. a. X b. 22nd c. Yarrow_forwardCrossing over mixes up_____ . a. chromosomes c. zygotes b. alleles d. gametesarrow_forwardIn addition to codominance, the ABO blood group antigens are also an example of ________.a. incomplete dominanceb. X-linked recessive inheritancec. multiple allelesd. recessive lethal inheritancearrow_forward
- When one examines the pattern of inheritance of a trait and finds that it is transmitted from fathers to sons to grandsons (never appearing in the females genotype) what is the conclusion about the inheritance pattern? a. Sex linked b. Sex limited С. Sex related d. X linked e. Sex influenced Red-Green color blindness a. Has its genetic determination on the x chromosome b. Affects more males than females С. Is influenced by somatic sex differentiation d. A and b e. All of thesearrow_forwardMales only have 1 X chromosome. This is called: Homozygous a. O b. Heterozygous Hemizygous C.arrow_forwardThe probability of a crossover occurring between two genes on the same chromosome_____ . a. is unrelated to the distance between them b. decreases with increasing distance between them c. increases with the distance between themarrow_forward
- An example of a trait that results from a single dominant allele is _____. A.attached earlobes B.cystic fibrosis C.more frequent in its appearance D.polydactylyarrow_forwardIn a cross between a homozygous red-eyed female fruit fly and a white-eyed male fruit fly, what is the expected outcome? a. all white-eyed male offspring b. all white-eyed female offspring c. all red-eyed offspring d. half white-eyed make offspringarrow_forwardA heterozygous individual has a _______ for a trait being studied. a. pair of identical alleles b. pair of nonidentical alleles c. haploid condition, in genetic termsarrow_forward
- Alternative forms of the same gene are called _________ . a. gametes c. alleles b. homologous d. sister chromatidsarrow_forwardAlleles for Tay-Sachs disease are inherited in an autosomal recessive pattern. Why would two parents with a normal phenotype have a child with Tay-Sachs? a. Both parents are homozygous for a Tay-Sachs allele. b. Both parents are heterozygous for a Tay-Sachs allele. c. New mutations gave rise to Tay-Sachs in the child. d. b or carrow_forwardA condition in which both alleles of a heterozygous condition are expressed as a blending of traits is ______. a incomplete dominance b sex-linked c transformation d crossing overarrow_forward
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