Mindtap Biology, 2 Terms (12 Months) Printed Access Card For Starr/taggart/evers/starr's Biology: The Unity And Diversity Of Life
15th Edition
ISBN: 9781337408516
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 17, Problem 1SQ
Summary Introduction
Introduction: Every organism consists of genes that are made up of DNA. All organisms appear different from one another and also from their ancestors as a result of evolution. Mutation is the key for evolution and the original source for the appearance of new alleles.
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Britain’s Queen Victoria was a carrier for the allele that causes hemophilia and she passed this allele on to some of her descendants. However, there is absolutely no evidence of anyone in Queen Victoria’s ancestry having hemophilia.
A-gene flow
B-genetic drift
C-mutation
D-natural selection
which of these is not a central rule of natural selection
a, fitness to the general health and strength of an organism
b, natural selection can only act on traits that affect reproduction
c, natural selection can't occur without population variation
d, a trait must be inherited if natural selection is to act on it
When a gene from one species is transferred into another species, the result is ____.
a.
a lethal mutation
b.
a hybrid animal
c.
a GMO
d.
a new species
e.
eugenics
Chapter 17 Solutions
Mindtap Biology, 2 Terms (12 Months) Printed Access Card For Starr/taggart/evers/starr's Biology: The Unity And Diversity Of Life
Ch. 17 - Prob. 1DAACh. 17 - Prob. 2DAACh. 17 - Prob. 3DAACh. 17 - Prob. 4DAACh. 17 - Prob. 1SQCh. 17 - A neutral mutation _______ . a. has a pH of 7.0 b....Ch. 17 - Change in allele frequency of a population is...Ch. 17 - A wild population of pea plants has two alleles...Ch. 17 - Which of the following is not part of how we...Ch. 17 - Prob. 6SQ
Ch. 17 - The persistence of sickle-cell anemia in a...Ch. 17 - ___ tends to keep populations of a species similar...Ch. 17 - Which is required for a population to evolve? a....Ch. 17 - Prob. 10SQCh. 17 - After fire devastates all of the trees in a wide...Ch. 17 - True or false? Inbreeding can increase the...Ch. 17 - The difference between sympatric and parapatric...Ch. 17 - Prob. 14SQCh. 17 - Match the evolution concepts. ____ gene flow a....Ch. 17 - Species have traditionally been characterized as...Ch. 17 - Rama the cama, a llama-camel hybrid, was born in...Ch. 17 - Two species or antelope, one from Africa, the...Ch. 17 - Prob. 4CTCh. 17 - About 70 percent of flowering plants are...
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- Provided with the evidences on the picture, choose which of these represents descent with modification. Why it is considered as a descent with modification? provide one theory to support your answerarrow_forwardThe modes of natural selection differ based on how selection acts on the _____ of a population. a color b environment c genotypes d phenotypesarrow_forwardMutation (a) leads to adaptive evolutionary change (b) adds to the genetic variation of a population (c) is the result of genetic drift (d) almost always benefits the organism (e) a and barrow_forward
- The reason spontaneous mutations do not have an immediate effect on allele frequencies in a large population is that: a. mutations are random events, and mutations may be eitherbeneficial or harmful. b. mutations usually occur in males and have little effect oneggs. c. many mutations exert their effects after an organism hasstopped reproducing. d. mutations are so rare that mutated alleles are greatlyoutnumbered by nonmutated alleles. e. most mutations do not change the amino acid sequence of aprotein.arrow_forward10)arrow_forward1a-Farmers often use pesticides to kill insects to protect their crops. However, insect populations will often develop resistance to any pesticides that are used on them within a few generations. What is the selective pressure in such a scenario? O a. Pesticide treatment O b. The crops Oc. Pesticide resistance Od. The insects Oe. Mutation 1b-What is/are the element(s) required for a population to change due to natural selection? Select all options that are correct below. a. Variability in a population b. Genetic drift c. Inheritance of traits d. Differential survival e. Evolutionarrow_forward
- When genes from two parents mix together to form the genes of their child, this is called a. Recombination b. Natural selection c. Resequencing d. Mutation e. Evolutionarrow_forwardWhich of the following statements describes an example of genetic drift?a. Allele g for fat production increases in a small population because birds with more bodyfat have higher survivorship in a harsh winter.b. Random mutation increases the frequency of allele A in one population but not inanother.c. Allele R reaches a frequency of 1.0 because individuals with genotype rr are sterile.d. Allele m is lost when a virus kills all but a few individuals and just by chance, none ofthe survivors possess allele m.arrow_forwardBoth mutation rate and population size influence genetic diversity, but they do so to different degrees. Which of the following is WRONG as a comparison of genetic diversity between two populations? O a. Cheetah population (100 individuals ) > Nycterophilia bat flies that live on them d. Forest owlet (between 70 and 400 individuals) >> Ridgway's hawk (maximum 50 individuals) e. cardinalflower (Northeast and South of North America) >> smooth azalea (only in the Eastern seaboard)arrow_forward
- In the universal ABO blood grouping system, there are four phenotypes—A, B, AB, and O—which are determined by three different alleles. The presence of three alleles in the ABO blood grouping system is an example of ____. a. a polymorphism b. the bottleneck effect c. genetic drift d. a dimorphism e. the founder effectarrow_forwardGenetic drift can be defined as Group of answer choices A. accidental changes in DNA structure b.how lazy loci evolve c. random change in allele frequency over time D. differences in fitness between allelesarrow_forwardDefine gene mutation Group of answer choices A. the process whereby organisms better adapted to their environment tend to survive and produce more offspring. B. the introduction of genetic material (by interbreeding) from one population of a species to another, thereby changing the composition of the gene pool of the receiving population C. variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce. D. A rare and random change in a gene that can be bad or benef icial depending on the environment .arrow_forward
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