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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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
1)Ganarles contain one kind of each chromosome because the homologous chromosomes separate during meiosis. True or False?
2)In humans, there are two alleles possible at the chromosome locus that determine blood type. True or False?
3) Mendel was a famous naturalist who developed the concept that lead to the laws of evolution. True or False?
4) Embryonic stem cells come from embryos made for research. True or False?
5) An organisms environment history, in addition to the phenotype, can influence the genotype. True or false?
6) During métodos homólogos chromosome sorteaste and the daughter cells have one copy of each kind of chromosome. True or False?
7) the surtidor include all the pair of chromosome except the X and Y Chromosome. True or False?
8) during DNA replication, the patent DNA molecule unerring and unzips. Then reach old stand serves as a template for a new stand. True or False?
9) mutations due to replication errors and environmental factors are quite common due to the proof…
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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- 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…arrow_forwardTwo parents, who are thought to be different species, mate and produce viable hybrid offspring. When two of these hybrids mate, their offspring are not viable. What is the BEST interpretation of this data? A. The original parents are the same species because they can breed together. B. The original parents are the same species because they can breed together and produce viable offspring. C. The original parents are not the same species because they produce hybrids that impair the species’ development or survival in its environment. D. The original parents are not the same species because they produce hybrids that can have reduced viability and fertility when they mate.arrow_forwardOne of the key ingredients of evolution by natural selection is variation. Within a population, evolution by natural selection will occur if there is a selective advantage of one variation over another. What are the sources of variation in living populations? Select all that apply. a random mutations to DNA when DNA replicates in reproductive cells b environmental factors that may mutate DNA in gametes c mutations in somatic cells d crossing over during meiosisarrow_forward
- 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_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_forward
- In 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_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_forwardWhich of the following decreases genetic variation in a population? a)natural selection b)mutation c)gene flow d)meiosis e) A and C only (Option E is said to be incorrect)arrow_forward
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Genetic Variation and Mutation | 9-1 GCSE Science Biology | OCR, AQA, Edexcel; Author: SnapRevise;https://www.youtube.com/watch?v=bLP8udGGfHU;License: Standard YouTube License, CC-BY