Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 46, Problem 3CCQ
Summary Introduction
To determine:
The most descendent between the given families by 2000.
Introduction:
By determining the total fertility rate, the global
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Students have asked these similar questions
Do mutations in body cells contribute to genetic variation?
No, the causes of body cell mutations are outside the body and cannot alter DNA.
Yes, these body cell mutations lead to mutations in the gametes.
No, the mutations cannot be passed to offspring and only affect the individual.
Yes, the mutations can be passed on to offspring and contribute to variation in the population.
I think it is the 3rd answer because mutations in body cells can't be passed on and only stay with the individual. Please confirm.
Mutations are the ultimate source of genetic variation. Consider a population of 500
diploid individuals. If a mutation resulting in a single copy of a novel allele occurred in
a gene in one individual, what is the frequency of the new allele in the population?
0.05
0.000001
0.001
0.005
0.002
Below is a life table for a hypothetical organism. What is the expected lifetime reproductive success for individuals carrying the A1 allele? (Note: RS: reproductive success)
Question 3 options:
2.35
2.50
2.64
3.66
24.00
Follow up on the previous question. If a mutation occurred such that A2 allele appeared in this population. The new allele has the effect of reproducing one year earlier but at the cost of not being able to reproduce after age 6. Can A2 allele be selected for and subsequently fixed in the population?
Question 4 options:
Yes, because A2 allele exhibits the antagonistic pleiotropic effect.
Yes, because carriers of the A2 allele have a higher expected lifetime reproductive success than the individuals carrying the A1 allele.
No, because carriers of the…
Chapter 46 Solutions
Principles of Biology
Ch. 46.1 - If the population pyramid in (a) was inverted,...Ch. 46.1 - Prob. 2CCCh. 46.1 - Prob. 1TYKCh. 46.1 - The total fertility rate is highest in Latin...Ch. 46.2 - Prob. 1CCCh. 46.2 - Prob. 1TYKCh. 46.2 - Prob. 2TYKCh. 46.3 - Prob. 1CCCh. 46.3 - Prob. 1BCCh. 46.3 - Prob. 1TYK
Ch. 46.3 - Prob. 2TYKCh. 46.4 - Prob. 1TYKCh. 46.5 - Prob. 1TYKCh. 46.6 - Prob. 1TYKCh. 46.6 - Prob. 2TYKCh. 46.7 - Prob. 1BCCh. 46.7 - Prob. 2BCCh. 46.7 - Prob. 1TYKCh. 46.7 - Prob. 2TYKCh. 46 - Prob. 1TYCh. 46 - Prob. 2TYCh. 46 - Prob. 3TYCh. 46 - Prob. 4TYCh. 46 - Prob. 5TYCh. 46 - Prob. 6TYCh. 46 - Prob. 7TYCh. 46 - Prob. 8TYCh. 46 - Prob. 9TYCh. 46 - Prob. 10TYCh. 46 - Prob. 1CCQCh. 46 - Prob. 2CCQCh. 46 - Prob. 3CCQCh. 46 - Prob. 1CBQCh. 46 - Prob. 2CBQ
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- When is being genetically identical to the parent an advantage for organisms? Question options: When many offspring are needed in a short amount of time. When the environment is just like the one the parent lived in successfully. When no mates can be found. When the environment is changing and fast reproduction is needed. Sexual reproduction increases which of the following? Question options: Survival rates for all organisms The rate (speed) of evolution Mutations Genetic diversityarrow_forwardAccording to the Hardy-Weinberg Equilibrium Equation, all of the following slow down or stop evolution EXCEPT (choose as many as apply): Group of answer choices very small population very large population no one leaves or comes into the population everyone has equal numbers of offspring there are no mutations there are lots of mutations there is non- random matingarrow_forwardDo mutations in body cells contribute to genetic variation? No, the causes of body cell mutations are outside the body and cannot alter DNA. Yes, these body cell mutations lead to mutations in the gametes. No, the mutations cannot be passed to offspring and only affect the individual. Yes, the mutations can be passed on to offspring and contribute to variation in the population.arrow_forward
- 21) ALL BUT ONE of the statements below helps to describe gene flow. That is A) B) Without genetic variation, some of the basic mechanisms of evolutionary change cannot operate. There are three primary sources of genetic variation: 1. Mutations II. Gene flow III. Sexual reproduction D) It depends on a chance event that changes the gene pool. It can reduce the genetic differentiation between the two groups. It involves the movement of alleles from one population to another. It includes migration or the movement of individuals between populations. Some mutations always occur from generation to generation. But most mutations do not persist over time in the gene pool. Which mutation is MOST likely to become established and persist in a species?arrow_forwardIn addition to evolution through vertical descent, evolutionary changes can also occur by horizontal gene transfer, and this process involves 1. mostly eukaryotic organisms. 2. competition 3. the transfer of genes from one organism to another one that is not its direct descendant and might even be from a different species. 4. a recent time in the history of life in our planet. 5. the transfer of genes from one organism to another one with a parent-offspring relationship.arrow_forwardIn a certain population, there exists a recessive disease which causes death by the age of 5 years. You study this population and discover that all the homozygous recessive individuals have died. Two years later, you find homozygous recessive individuals are back in the population. There has been no gene flow, so from where did these individuals come?arrow_forward
- "evolution is an integrated process" and uses sickle-cell allele as an example. In just 2-3 sentences, trace the various factors that influence evolution based on this example. I just want to know how Darwin, Mendel, gene flow, genetic drift, mutation, recombination and even the environment serve to create evolution. Thank you.arrow_forwardImagine a scenario where you are male and have a triangular head. For some reason, females in your area find triangular heads very attractive, so guys with triangular heads mate and reproduce more than other men. Eventually, all the non-triangular-headed people die out and the whole population of people in your area has triangular heads. This is an example of what? Question 5 options: natural selection evolution reproduction irritability developmentarrow_forwardAssume you are studying a population of ocean shrimp that reproduce asexually. You sequence the ocean shrimp and the species that is their closest living relative that reproduces sexually. You find that the asexually reproducing species has a higher number of mutations in the genome. This finding would provide support for which of the following ideas? Linkage disequilibrium Stabilizing selection Disruptive selection Muller's ratchetarrow_forward
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