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- The whiptail lizard is an all-female population in which an individual lizard reproduces by cloning itself (by a process called parthenogenesis). Because of this, all surviving whiptail lizards are clones of one another. Which of the following statements is true? I. The absence of sexual reproduction conserves resources and allows the population to thrive better overall. II. The absence of sexual reproduction conserves resources but is detrimental to the long-term survival of the species. III. All members of the population are equally susceptible to parasites and disease. IV. The population can easily adapt to any environmental change. A. I only B. II only C. IV only D. II and IIIBelow 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…Which of the following factors does not contribute to a J-shaped curve? a. long life span b. fast reproductive cycle c. high number of offspring per reproductive cycle d. unlimited source of food
- 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) # of individual RS of survivor surviving RS of survivor Age carrying A1 allele carrying A2 allele 1000 1 600 1 420 1 336 1 4 302 272 2 6. 218 1 7 152 1 8. 91 1 9. 46 10 1.84 2.44 3.27 3.54 13This diagram illustrates a type of reproductive process in an organism. Parent Offspring A Based on this information, what conclusion about the offspring labeled "A" is supported? O It has acquired traits in response to its environment. O It has a lower mass of genetic material than offspring B. O It has the same genetic material as its parent. O It has half as much genetic material as its parent. INTL 01 https://student.masteryconnect.com/#What is the selective factor, or selective environment, in the case of sexual selection, that allows individuals with some genotypes to leave more offspring than individuals of other genotypes? Choose the best answer from the available options. Group of answer choices A-Sickle-cell disease B- AIDS C-Human preference D-Malaria E-Female preference
- Which of the following statements about the theories of senescence is correct? Question 2 options: The reason why organisms become old and decrepit is because an individual would often have accumulated too much energy in its lifetime in the form of fat reserve; therefore, an older individual often dies from old-age related diseases. An allele that shows its deleterious effect later in life will always have a smaller impact on an organism's fitness than an allele that shows its deleterious effect early in life. Therefore, late-acting deleterious mutations can be fixed in the population, resulting in shortened lifespans. The allele that can result in early reproduction will always be selected for, even if it comes with a cost of earlier senescence. Typically, for species that live fast would usually die young. None of the aboveWrite the definition of the following terms: 1. Semelparous life history 2. Iterous species 3. Senescence 4. Antagonistic pleiotropy 5. Carrying capacity(Following Question 25) 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? 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 A2 allele live fast, therefore they will always die young. No, because the carriers of the A2 allele have a lower expected lifetime reproductive success. Therefore, the A2 allele is a deleterious allele. Not enough information in this problem that would allow us to make an informed prediction.
- Describe thoroughly the selective advantages and disadvantages organisms that reproduce sexually have over those that reproduce asexually, as well as the ramifications of mate choice on the traits present in species. The following questions could help answer the question above. What are the advantages of sexual reproduction? What are the disadvantages? How do traits selected by sexual selection and those selected by differential survival mix in an animal species? i.e. is it more important to mate or survive? Use specific examples to illustrate your point. Your answers should indicate an understanding of the mechanism behind natural selection. Propose a scenario where asexual reproduction would be favorable.87)The life table below is for a species of lizard. Use it to answer the questions below. It can be copied and pasted in excel or downloaded here. What is the generation time for this species (rounded to the closest full number)? x nx bx 0 678 0 1 102 0 2 31 0 3 19 10 4 14 12 5 12 12 6 10 14 7 10 10 8 8 11 9 7 10 Question 87 options: 5 years 12 years 3 years 10 yearsWhich of the following is true about fitness? a) It refers to the physical strength of an individual b) It is determined solely by an individual's genotype c) It is the same thing as survival d) It is the ability of an individual to reproduce and pass on its genes to the next generation