Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 19, Problem 2TYU
In a diploid species, each individual possesses (a) one allele for each locus (b) two alleles for each locus (c) three or more alleles for each locus (d) all the alleles found in the gene pool (e) half of the alleles found in the gene pool
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Which of the following is least likely to produce genetic variation in the offspring of an individual?
(a) a DNA replication error caused by DNA polymerase in a body cell of the individual
(b) a cross over event during meiosis that creates a new combination of alleles in the gametes
(c) independent assortment of chromosomes during meiosis that creates a new combination of alleles in the gametes
(d) the random fertilization of an egg cell by a sperm cell during sexual reproduction
The term heterozygous means;
a) An organism has two different sex chromosomes
Ob) An organism was originally twins that fused together in the zygote stage
c) An organism has two identical alleles for a given gene
d) An organism has two different alleles for a given gene
In fruit flies, yellow body is a sex linked recessive allele. The dominant
allele is dark bodied. If a female with a yellow body mates with a male
with a dark body, then what percent of the female offspring will be
yellow?
O
O
O
O
a) 0
b) 25
c) 50
d) 75
e) 100
Chapter 19 Solutions
Biology (MindTap Course List)
Ch. 19.1 - Define what is meant by a populations gene pool.Ch. 19.1 - Distinguish among genotype, phenotype, and allele...Ch. 19.1 - Prob. 1CCh. 19.1 - Can the frequencies of all genotypes in a...Ch. 19.1 - INTERPRET DATA In a human population of 1000, 840...Ch. 19.2 - Discuss the significance of the HardyWeinberg...Ch. 19.2 - Prob. 4LOCh. 19.2 - INTERPRET DATA In a population at genetic...Ch. 19.2 - INTERPRET DATA In a population at genetic...Ch. 19.2 - INTERPRET DATA The genotype frequencies of a...
Ch. 19.3 - Prob. 5LOCh. 19.3 - Discuss how each of the following...Ch. 19.3 - Distinguish among stabilizing selection,...Ch. 19.3 - Which microevolutionary force leads to adaptive...Ch. 19.3 - Why is mutation important to evolution if it is...Ch. 19.3 - Which microevolutionary forces are most associated...Ch. 19.3 - Prob. 4CCh. 19.4 - Prob. 8LOCh. 19.4 - Prob. 1CCh. 19.4 - Prob. 2CCh. 19.4 - How can researchers test the hypothesis that...Ch. 19 - The genetic description of an individual is its...Ch. 19 - In a diploid species, each individual possesses...Ch. 19 - The MN blood group is of interest to population...Ch. 19 - If a populations allele and genotype frequencies...Ch. 19 - Prob. 5TYUCh. 19 - The continued presence of the allele that causes...Ch. 19 - According to the HardyWeinberg principle, (a)...Ch. 19 - Prob. 8TYUCh. 19 - Mutation (a) leads to adaptive evolutionary change...Ch. 19 - Which of the following is not true of natural...Ch. 19 - If all copies of a given locus have the same...Ch. 19 - Prob. 12TYUCh. 19 - EVOLUTION LINK Given that mutations are almost...Ch. 19 - Prob. 14TYUCh. 19 - Prob. 15TYUCh. 19 - EVOLUTION LINK Evolution is sometimes...Ch. 19 - INTERPRET DATA The recessive allele that causes...Ch. 19 - PREDICT You study males in populations of a...Ch. 19 - Prob. 19TYU
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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
- In fruit flies, yellow body is a sex linked recessive allele. The dominant allele is dark bodied. If a female with a yellow body mates with a male with a dark body, then what percent of the female offspring will be yellow? O O O O a) 0 b) 25 c) 50 d) 75 e) 100arrow_forwardWhich statement is false when considering alleles and genes? a) A given gene can have many different possible alleles. b) Alleles are alternative forms or variants of genes. c) Individuals can be homozygous or heterozygous, and this refers to which alleles they have for a particular gene. d) An allele is the same thing as a gene.arrow_forwardAmong a species of butterflies, the color blue (B) is a dominant trait. Yellow color (b) is a recessive'trait. If a pure blue butterfly (BB) mates with a pure yellow (bb), what will the offspring look like? A) They will all be blue. B) They will all be yellow. Half will be blue and half will be yellow. D) About 75% will be blue and 25% will be yellow.arrow_forward
- In fruit flies a dominant mutation on the X chromosome causes the eye to be oval instead of round (recessive). If a male with oval eyes has offspring with a female with round eyes, what percentage of the male offspring will have oval eyes? O O O a) 0 b) 25 c) 50 d) 75 e) 100arrow_forwardhelppparrow_forward1.) If the chromosome number in a sepematogonium is 24, what will be the chromosome number in each sperm after the completion of spermatogenesis? a.) 12 b) 24 c) 48 d.) 6 2.) The ability to roll your tongue is controlled by a dominant allele (T); people who have two copies of the recessive allele (t) cannot role their tongues. A cross between parents whose genotypes are TT and tt will produce a family with which of the following phenotypes? Question 1 options: a.) all will be tongue-rollers b.) none will be tongue-rollers c.) half will be tongue-rollers, d.) half will not be tongue-rollers e.) 75% will be tongue-rollers, f.) 25% will not be tongue-rollers. 3.) The gene for white eye colour is present on the X-chromosome in Drosophila, and is a recessive trait. A female fly with white eyes in the F1 generation can be produced if it inherits an X-chromosome with Question 48 options: a.) recessive allele from father only b.) recessive allele from mother only c.) recessive alleles…arrow_forward
- In African clawed toads, albino skin (a) is recessive to green skin (A). Two toads are mated. One of the parents has green skin and one has albino skin. Among the resulting offspring are twenty albinos and eighteen greens. (Show your work below!) (a) What is the genotype of the green parent? (b) What is the genotype of the albino parent? (c) What are the genotypes of the offspring? Greens Albinos (d) Did segregation of alleles occur? (e) Did independent assortment of alleles occur? (f) Explain your answers. (g) Which of Mendel’s Laws is demonstrated by this example?arrow_forwardThe allele for red feather color in pigeons (B), is dominant to the allele for brown feathers (b.) A red pigeon that has a red parent and a brown parent is mated with a brown pigeon. a.) Give the genotypes of the two pigeons being mated. b.) what proportion of the F1 progeny would be expected to have brown feathers? Assume that these pigeons produce five young pigeons. c.) what is the probability that all five will be red? d.) What is the probability that 3 will be red and 2 will be brown?arrow_forwardFor each of the following, identify what characteristics of a species male and female karyotype would indicate that mechanism of sex-determination. In each case, list a characteristic that would be specific to only that sex-determination system if possible. If no such characteristic is possible, specify which other sex-determination system would show the same karyotype characteristic. (A) Genic (B) XY sex chromosomes (C) ZW sex chromosomes (D) Haplo-diploid genomes (E) XO sex chromosomes (F) Environmentalarrow_forward
- 2) Meiosis and sexual reproduction are, in large part, responsible for genetic variation within a population. Meiosis supports genetic variation in several ways. All BUT ONE applies to meiosis, sexual reproduction and genetic variation. A) Meiosis is preceded by DNA replication of chromosomes in the nucleus of the mother cell. B) As seen in the diagram, during meiosis crossing over, or swapping of DNA segments, may occur. C) During fertilization each parent randomly contributes a unique set of chromosomes to the zygote. D) Because of recombination and independent assortment during meiosis, each of the four gametes contains a different set of DNA. Not Gradedarrow_forwardIf two genes are located on different chromosome types then (a) the mother’s genotype will determine the phenotype of the son (b) the genes will not be inherited independently (c) parents that are heterozygous for both genes will produce children displaying a 9:3:3:1 ratio (d) one gene will mask or hide the effect of the other (e) none of the abovearrow_forwardScale color in a lizard species is inherited via a single gene with 6 different alleles. (a) How many different types of gametes would be possible in this system? (b) What is the maximum number of different types of scale color gametes that could be produced from one individual lizard?arrow_forward
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