BIOL 1010/1020 CLASS ONLY CONNECT
14th Edition
ISBN: 9781260038644
Author: Mader
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 23.1, Problem 2LO
Define the term allele, and explain what it means for an allele to be dominant or recessive.
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Discuss the differences between a dominant and a recessive allele.
Explain what is meant by a recessive allele? What makes an allele recessive? Explain why there can be many versions of a recessive allele that produce the same phenotype?
In genetics, what does a genotype of Hh signify?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Homozygous; two dominant alleles
(Choice B)
B
Homozygous; two recessive alleles
(Choice C)
C
Heterozygous; one dominant allele and one recessive allele
(Choice D)
D
Homozygous; one dominant allele and one recessive allele
Chapter 23 Solutions
BIOL 1010/1020 CLASS ONLY CONNECT
Ch. 23.1 - Describe how Mendel's law of segregation and law...Ch. 23.1 - Define the term allele, and explain what it means...Ch. 23.1 - Contrast genotype and phenotype, and use...Ch. 23.1 - Predict outcome ratios and probabilities for...Ch. 23.1 - Prob. 1QTCCh. 23.1 - 2. Decide the reasons listed in the feature, what...Ch. 23.1 - Prob. 3QTCCh. 23.1 - Distinguish between the terms genotype and...Ch. 23.1 - Explain the purpose of testcross.Ch. 23.1 - Prob. 3CYP
Ch. 23.1 - Describe the types of process that result in a 3:1...Ch. 23.2 - Recognize autosomal dominant and autosomal...Ch. 23.2 - Prob. 2LOCh. 23.2 - Describe the characteristics of a Pedigree for an...Ch. 23.2 - Prob. 2CYPCh. 23.3 - Prob. 1LOCh. 23.3 - Prob. 2LOCh. 23.3 - Describe polygenic inheritance.Ch. 23.3 - Prob. 1CYPCh. 23.3 - Prob. 2CYPCh. 23.4 - Prob. 1LOCh. 23.4 - Understand how scientists determine the effect of...Ch. 23.4 - Prob. 1CYPCh. 23.4 - Prob. 2CYPCh. 23 - Prob. C2BYBCh. 23 - Prob. S5.4BYBCh. 23 - Prob. S5.6BYBCh. 23 - Prob. 1CSCh. 23 - Prob. 2CSCh. 23 - Prob. 1ACh. 23 - Prob. 2ACh. 23 - Prob. 3ACh. 23 - Prob. 4ACh. 23 - Prob. 5ACh. 23 - Prob. 6ACh. 23 - Prob. 7ACh. 23 - Prob. 8ACh. 23 - Prob. 9ACh. 23 - Prob. 10ACh. 23 - Prob. 11ACh. 23 - Prob. 12ACh. 23 - Prob. 1AGPCh. 23 - Prob. 2AGPCh. 23 - Prob. 3AGPCh. 23 - Prob. 4AGPCh. 23 - Prob. 5AGPCh. 23 - Prob. 6AGPCh. 23 - Prob. 7AGPCh. 23 - Prob. 8AGPCh. 23 - Prob. 1TCCh. 23 - How would you determine whether a disease in...Ch. 23 - Prob. 3TC
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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
- Define the difference between (a) gene and allele, (b) dominant allele and recessive allele, (c) homozygote and heterozygote, and (d) genotype and phenotype.arrow_forwardDistinguish between dominant and recessive alleles.arrow_forwardWhat is a lethal allele? Contrast recessive lethal allele and dominant lethal allele.arrow_forward
- Differentiate between the Dominance and Recessive.arrow_forwardState at least three reasons why a person’s phenotype can’t always be determined from the genotype.arrow_forwardThe allele for albinism ( c ) is recessive to the allele for normal pigmentation ( C ). A normally pigmented woman whose father is an albino marries an albino man whose parents are normal. They have three children, two normal and one albino. Give the genotypes for EACH person listed.arrow_forward
- Define and explain the relationship between genotypes and phenotypes (50 words) and dominant and recessive traits (50 words).arrow_forwardDescribe the following (50 words minimum per concept): chromosomes, genes, alleles and traits and explain how they are related.arrow_forwardThe allele for hitchhiker’s thumb (h) is recessive to straight thumb (H). If a man and his wife are both homozygous recessive, will any of their offspring potentially have hitchhikers thumb? What is the man’s genotype and the woman’s genotype? What is the man’s phenotype and the woman’s phenotype? What genotype(s) must the offspring have in order to have the phenotypic trait of hitchhiker’s thumb? Do a cross to determine all potential hitchhiker’s thumb genotypes and phenotypes for the offspring of this man and woman. Is it possible for any offspring of the F1 generation to have hitchhiker’s thumb?arrow_forward
- A gene is composed of two alleles. An allele can be either dominant or recessive. Suppose that a husband and wife, who are both carriers of the sickle-cell anemia allele but do not have the disease, decide to have a child. Because both parents are carriers of the disease, each has one dominant normal-cell allele (S) and one recessive sickle-cell allele (s). Therefore, the genotype of each parent is Ss. Each parent contributes one allele to his or her offspring with each allele being equally likely. Complete parts a) through c) below. a) Genes are always written with the dominant gene first. Therefore, there are two instances the offspring could have genotype Ss (one if the mother contributes the dominant allele and the father contributes the non-dominant allele; and one if the father contributes the dominant allele and the mother contributes the non-dominant allele). List the other two possible genotypes of the offspring. (Use a comma to separate answers as needed.)arrow_forwardRed-green colorblindness is due to a sex-linked recessive gene. If two normal parents have a colorblind son, provide the genotypes of the parents and all the possible genotypes of their children.arrow_forwardPeople with recessive disorders are usually born to normal parents who are both heterozygotes which means that both parents are carriers of the dominant allele for the disorder but appear normal themselves. Select one: True Falsearrow_forward
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