BIOLOGY: CONCEPTS&INVEST. (LL)
5th Edition
ISBN: 9781264706983
Author: Hoefnagels
Publisher: MCG
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Textbook Question
Chapter 10, Problem 7MCQ
How can epistasis decrease the number of
- a. One gene may mask the expression of another gene.
- b. One allele may mask the expression of another allele of the same gene.
- c. Genes may become silenced after exposure to certain environmental cues.
- d. Genes may be inactivated if they are on an X chromosome.
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In organisms with X and Y chromosomes, many more genes can be found on the X chromosome than on the Y chromosome. In mammals, how might this deviate from traits being expressed, according to Mendel?
A.
Females might exhibit a mix of traits rather than all dominant or all recessive traits.
B.
Only females will have the traits resulting from the X-linked genes.
C.
Females will overproduce some proteins in relation to males’ production levels.
D.
This will not result in individuals deviating from Mendel’s principles.
In genetic maternal effect, the phenotype of the individual is determined by which of these statements?
A. The sex of the parent who transmits the gene
B. The nuclear genotype of the maternal parent
C. The sex of the individual with only one sex able to express the phenotype
D. Cytoplasmic genes usually located in the mitochondria
E. A combination of environmental factors and the genotype of the individual
In mammals, males have X and Y sex chromosomes, while females have two Xs. While the Y sex chromosome has very few genes associated with it, the X sex chromosome has many that are important to maintain life. How do mammals account for this in terms of equaling out gene expression levels?
A. Mammals do not need to account for this, but birds do.
B. Females produce more proteins from X-linked genes than males do.
C. The single X of the males works twice as hard to keep up with the female’s two Xs.
D. The females have one X inactivated to permit the males to keep pace with them.
Chapter 10 Solutions
BIOLOGY: CONCEPTS&INVEST. (LL)
Ch. 10.1 - Describe the relationships among chromosomes, DNA,...Ch. 10.1 - Prob. 2MCCh. 10.2 - Why did Gregor Mendel choose pea plants as his...Ch. 10.2 - Distinguish between dominant and recessive;...Ch. 10.2 - Prob. 3MCCh. 10.3 - What is a monohybrid cross, and what are the...Ch. 10.3 - How are Punnett squares helpful in following...Ch. 10.3 - Prob. 3MCCh. 10.3 - How does the law of segregation reflect the events...Ch. 10.4 - Prob. 1MC
Ch. 10.4 - Prob. 2MCCh. 10.4 - How can the product rule be used to predict the...Ch. 10.5 - How do patterns of inheritance differ for unlinked...Ch. 10.5 - What is the difference between recombinant and...Ch. 10.5 - Prob. 3MCCh. 10.6 - Prob. 1MCCh. 10.6 - Differentiate between pleiotropy and epistasis.Ch. 10.6 - How can the same phenotype stem from many...Ch. 10.6 - Figures 10.18 and 10.20 show two ways that a...Ch. 10.7 - Prob. 1MCCh. 10.7 - Prob. 2MCCh. 10.7 - Why do males and females express recessive...Ch. 10.7 - Prob. 4MCCh. 10.8 - Prob. 1MCCh. 10.8 - Prob. 2MCCh. 10.9 - Prob. 1MCCh. 10.9 - Prob. 2MCCh. 10.10 - Prob. 1MCCh. 10.10 - Prob. 2MCCh. 10 - In the list of four terms below, which term is the...Ch. 10 - According to Mendel, if an individual is...Ch. 10 - Prob. 3MCQCh. 10 - Which of the following is a possible gamete for an...Ch. 10 - Use the product rule to determine the chance of...Ch. 10 - Refer to the linkage map in figure 10.16b. A...Ch. 10 - How can epistasis decrease the number of...Ch. 10 - Prob. 8MCQCh. 10 - Prob. 9MCQCh. 10 - Prob. 1WIOCh. 10 - Prob. 2WIOCh. 10 - Some people compare a homologous pair of...Ch. 10 - How did Mendel use evidence from monohybrid and...Ch. 10 - Prob. 5WIOCh. 10 - Prob. 6WIOCh. 10 - Prob. 7WIOCh. 10 - Prob. 8WIOCh. 10 - Prob. 9WIOCh. 10 - A family has an X-linked dominant form of...Ch. 10 - X inactivation explains the large color patches in...Ch. 10 - Prob. 12WIOCh. 10 - Prob. 13WIOCh. 10 - Design an experiment using twins to determine the...Ch. 10 - Prob. 1GPCh. 10 - In Mexican hairless dogs, a dominant allele...Ch. 10 - A species of ornamental fish comes in two colors;...Ch. 10 - Two lizards have green skin and large dewlaps...Ch. 10 - Prob. 5GPCh. 10 - Prob. 6GPCh. 10 - Prob. 7GPCh. 10 - Prob. 8GPCh. 10 - Prob. 9GPCh. 10 - Prob. 1PITCh. 10 - Explain the effects of a mutation, using allele,...Ch. 10 - 3. Add meiosis, gametes, incomplete dominance,...
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- Which of the following is true of genomic imprinting? a. The sex of the parent that transmits an allele affects the expression of the allele in the offspring. b. The sex of the offspring affects the expression of an allele inherited from one of the parents. c. The sex of the parent affects how an allele is transmitted to the offspring. d. The sex of the offspring affects which allele is inherited from the parent.arrow_forwardIn marsupials, X inactivation occurs exclusively to paternally derived chromosomes. Which genes will ALWAYS be expressed in this situation? A. maternal X-linked genes B. paternal X-linked genes C. maternal Y-linked genes D. paternal Y-linked genesarrow_forwardFor XCI to occur, where are the Xist and Tsix genes expressed?a. Xist is expressed only on Xa, and Tsix is expressed onlyon Xi.b. Xist is expressed only on Xi, and Tsix is expressed onlyon Xa.c. Xist is expressed only on Xa, and Tsix is expressed onlyon Xa.d. Xist is expressed only on Xi, and Tsix is expressed onlyon Xi.arrow_forward
- Which of the following is associated with chemical modifications to chromosomes that label alleles as coming from the mother or father? a. Multiple alleles b. Extranuclear inheritance c. Epigenetic marks d. Small non coding RNAsarrow_forwardHemophilia in humans is due to a mutation on the X chromosome. What will be the result of mating between a normal (non-carrier) female and a hemophiliac male? A. Half of the daughters are normal and half of the sons are hemophiliacs. B. All sons are normal and all daughters are carriers. C. All daughters are normal and all sons are carriers. D. Half of the children are normal and the other half are hemophiliacs; All daughters are carriers.arrow_forwardHow is this trait inherited? A. The trait is epistatic. B. The trait is X-linked. C. The trait is dominant. D. The trait is recessive.arrow_forward
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