QUESTION 11Insecta cannot evolve as quickly as humans because they haven't figured out how to manipulate genes like people have.O TrueO FalseQUESTION 12Reproduction (to make an offspring) is essential for biologic evoluiton.O TrueO False

Insects come under phylum arthropoda. they have a unique cardenas cuticle which is lightweight and…

Answered: QUESTION 11 Insecta cannot evolve as…

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter15: Biotechnology

Section: Chapter Questions

Problem 14SA: True or false? Some humans are genetically modified.

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Design an experiment to test Lamarcks hypothesis that characteristics acquired during an organisms lifetime are inherited by their offspring. (You may wish to review the components of a well-designed experiment in Chapter 1 before formulating your answer.) Can you think of examples of acquired characteristics that are not inherited by offspring?
All mutations ________. a. result from radiation b. lead to evolution c. are caused by DNA damage d. change the DNA sequence
Genetics in Practice case studies are critical-thinking exercises that allow you to apply your new knowledge of human genetics to real-life problems. Case study Michelle was a 42-year-old woman who had declined counselling and amniocentesis at 16 weeks of pregnancy but was referred for genetic counseling after an abnormal ultrasound at 20 weeks of gestation. After the ultrasound, a number of findings suggested a possible chromosome abnormality in the fetus. The ultrasound showed swelling under the skin at the back of the fetuss neck; shortness of the femur, humerus, and ear length; and underdevelopment of the middle section of the fifth finger. Michelles physician performed an amniocentesis and referred her to the genetics program. Michelle and her husband did not want genetic counseling before receiving the results of the cytogenetic analysis. This was Michelles third pregnancy; she and her husband, Mike, had a 6-year-old daughter and a 3-year-old son. At their next session, the counselor informed the couple that the results revealed trisomy 21, explored their understanding of Down syndrome, and elicited their experiences with people with disabilities. She also reviewed the clinical concerns revealed by the ultrasound and associated anomalies (mild to severe intellectual disability, cardiac defects, and kidney problems). The options available to the couple were outlined. They were provided with a booklet written for parents making choices after the prenatal diagnosis of Down syndrome. After a week of careful deliberation with their family, friends, and clergy, they elected to terminate the pregnancy. Do you think that this couple had the right to terminate the pregnancy in light of the prenatal diagnosis? If not, under what circumstance would a couple have this right? What other options were available to the couple?
Genetics and Social Behavior Of the following findings, which does not support the idea that alcoholism is genetic? a. Some strains of mice select alcohol over water 75% of the time, whereas others shun alcohol. b. The concordance value is 55% for MZ twins and 28% for DZ twins. c. Biological sons of alcoholic men who have been adopted have a rate of alcoholism more like that of their adoptive fathers. d. There is a 20% to 25% risk of alcoholism in the sons of alcoholic men. e. None of these.
Neanderthal Hair Color The MC1R gene regulates pigmentation in humans (Sections 14.1 and 15.1 revisited), so loss-of-function mutations in this gene affect hair and skin color. A person with two mutated alleles for this gene makes more of the reddish melanin than the brownish melanin, resulting in red hair and pale skin. DNA extracted from two Neanderthal fossils contains a mutated MC1R allele that has not yet been found in humans. To see how the Neanderthal mutation affects the function of the MC1R gene. Carles Lalueza-Fox and her team introduced the allele into cultured monkey cells (FIGURE 26.16). FIGURE 26.16 MC1R activity in monkey cells transgenic for an unmutated MC1R gene, the Neanderthal MC1R allele, or the gene for green fluorescent protein (GFP). GFP is not related to MC1R. 1. How did MCR1 activity in monkey cells with the mutant allele differ from that in cells with the normal allele?
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QUESTION 11 Insecta cannot evolve as quickly as humans because they haven't figured out how to manipulate genes like people have. O True O False QUESTION 12 Reproduction (to make an offspring) is essential for biologic evoluiton. O True O False