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- QUESTION 19 A transgenic mouse was produced which lacks a protein that is required to assemble tight junctions in the epithelial cells of the skin. What is the most likely medical condition that these animals would have? A Water loss by uncontrolled evaporation from the skin B Reduced ability to heal from a wound C Increased wound size in response to an abrasion D Blistering of the skin due to lack of connection of the epithelium with the basement membraneQuestion 5 Mutations are random events. True or FalseQUESTION 26 One of the cultural preferences driving couples to continue having children in India is ____. a. the preference for female children b. a child benefit paid by the government c. the desire to have both male and female children d. a prohibition against birth control methods e. the preference for male children
- Question 24 pts When we are vaccinated against SARS-CoV-2, what happens? (select all correct answers) Group of answer choices a) Our adaptive immune system becomes primed to recognize the SARS-CoV-2 virus. b) Our DNA becomes modified. c) We will permanently have viral proteins in our cells d) Our cells will make a partial or complete viral protein, which our immune system will recognize as foreign. e) Memory cells will be ready for a new infection.Question 3. Eukaryote cells are living cells that are specialized to deal with changes in the external environment. A. Describe how the processes of Phagocytosis exhibited by the Amoeba represent a cell responding to a change in the environment. B. How is the process you described in "A" similar to the way the White Blood Cell (WBC) might react to a bacterium or a virus that invades the tissues of a human being.QUESTION 24 Human immunodeficiency virus (HIV) is of interest to evolutionary biologists because all of the following, EXCEPT: a. Phylogenetics allow us trace epidemics and transmission pathways. b. Evolution of the virus has led to drug resistance and the need for multidrug treatments. c. Population demography and disease transmission can differ between populations. d. Resistant alleles are maintained in high frequency due to high selective pressure of the disease.
- Question 7 Albinism is caused by an autosomal recessive allele that interferes with skin pigmentation in mammals. Two normally pigmented parents already have an albino boy. They plan to have 2 more children. a) What is the probability that their next two children will be normally pigmented? Show your work. b) What is the probability that their next two children will both have albinism? Show your work. c) What is the probability that, when they have 2 more children, they will end up with a family including a total of 2 albino children and one normal? Show your work. d) What is the probability that, when they have two more children, the next child (i.e. the second-born child) will be normal, followed by a child with albinism? Show your work. e) Explain why the answers to part (c) and part (d) are calculated differently.QUESTION 23 When using composting piles, it is important to _____. a. avoid adding food products or similar items b. dispose of the compost on a regular basis c. avoid adding weeds and other plants d. mix or rotate them and avoid adding hazardous materials e. fertilize the compost pileQUESTION 3 3.1. Regardless of the specificity and sensitivity of a test, if the test results cannot be reproduced, the value and usefulness of the test are minimal. Name and briefly discussthe three (3) factors that contribute to the variation between test results of assessing diagnostic and screening tests.
- QUESTION 16 Match the definitions and key words with the group name (programmed or stochastic). From the drop down boxes, choose the correct letter (A -- Programmed or B -- Stochastic). Celluar Aging: suggesting that the lifespan of a species is determined by an internal cellular "clock" that limits the number of cell divisions. Immune System: suggesting that aging is due to a break-down in the body's natural defense system against bacteria, viruses, and other substances. Error Theory: suggesting that errors at the cellular level produce "faulty" molecules. Evolutionary theory: suggesting that aging is a natural way to limit the reproductive potential and timespan of members of a species. Wear and Tear: suggesting that like a battery or a machine, the human…Question 14 One of the two genes known to be mutated in cases of Hypokalemic periodic paralysis (which is inherited in an autosomal dominant pattern but known to affect males more often than females) is the calcium voltage-gated channel subunit alpha1 S (CACNA1S). What is known about the gene is recorded here: https://www.ensembl.org/Homo_sapiens/Gene/Summary?db=core;g=ENSG00000081248;r=1:201039512-201112451 Please navigate to the link above. Use the left-hand menu to view the sequence for CACNA1S, and answer the following question. ANSWER ONLY IN UPPERCASE LETTERS, NO UNITS. What are the last six nucleic acid bases of exon 1? Answer: The last six nucleic acid bases of CACNA1S, exon 1 are Blank ...QUESTION 5 Voluntary attention may be defined as ______________. a. willful direction of attention to objects or locations in the world or internal events b. a sudden capturing of attention by external stimuli c. "endogenous" orienting d. "exogenous" orienting e. a and c