Why were Mendel's experiments important to biology? Select all that apply. ✔ they showed that all traits are either dominant or recessive Othey showed that inheritance was a random process ✔ they showed that mathematical models could be used to explain inheritance Othey showed that DNA contains the genes that control traits

Why were Mendel's experiments important to biology? Select all that apply. ✔ they showed that all traits are either dominant or recessive Othey showed that inheritance was a random process ✔ they showed that mathematical models could be used to explain inheritance Othey showed that DNA contains the genes that control traits

Name: 2.Why were Mendel's experiments important to biology?Select all that
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Description: 2.Why were Mendel's experiments important to biology?Select all that apply.✔ they showed that all traits are either dominant or recessiveOthey showed that inheritance was a random process✔ they showed that mathematical models could be used to explai

Understanding Nutrition (MindTap Course List)

15th Edition

ISBN:9781337392693

Author:Eleanor Noss Whitney, Sharon Rady Rolfes

Publisher:Eleanor Noss Whitney, Sharon Rady Rolfes

Chapter6: Protein: Amino Acids

Section: Chapter Questions

Problem 1BCTQ: You may have heard about the diet that is based on a persons blood type and claims to restore the...

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1.True or false: Morgan's fruit fly work showed that genes reside on chromosomes 2. True or false: All pea plant traits are "either or" 3. True or false: Mendel's "factors" are actually alleles for genes 4. True of false: DNA polymerase matches complimentary nucleotides to the template strand
5. The table shows the combinations of alleles that result in human ABO blood types. A biology student explains that two parents with type AB blood can produce children with any one of the four possible human blood types. Is the student's explanation correct? Blood Type A B AB O Blood Types Combination of Alleles JAJA or Ai BIB or 15 JA/B ii * REQUIRED No, the parent's genotypes cannot be determined, so predictions about children's traits cannot be made. No, the parents cannot produce children with type O blood. No, the parents can produce children with only type AB blood. Yes, these parents have alleles that can produce combinations resulting in all blood types. E 7
The ability of humans to taste the bitter chemical phenylthiocarbamide (PTC) is a genetic trait. People with at least one copy of the normal, dominant allele of the PTC gene can taste PTC; those who are homozygous for a mutant, recessive allele cannot taste it. Could two parents able to taste PTC have a nontaster child? Could nontaster parents have a child able to taste PTC? A pair of taster parents, both of whom had one parent able to taste PTC and one nontaster parent, are expecting their first child. What is the chance that the child will be able to taste PTC? Unable to taste PTC? Suppose the first child is a nontaster. What is the chance that their second child will also be unable to taste PTC?
You may have heard about the diet that is based on a persons blood type and claims to restore the bodys natural genetic rhythms and improve health. Research may one day reveal exactly which foods might best turn on and off specific genes to defend against specific chronic diseases. No doubt marketers will rush to fill grocery shelves with foods manufactured to match genetic profiles. Why do you think these genetic approaches to diet and health might be more or less appealing than eating patterns that include a variety of fruits, vegetables, whole grains, milk products, and meats?
4. In humans, cystic fibrosis and albinism are both inherited as independently assorting autosomal recessive traits. Use fto represent the recessive allele for cystic fibrosis and Ffor the allele for the unaffected condition. Use A to represent the dominant allele for normal melanin man is albino and heterozygous for cystic fibrosis. His wife has the unaffected phenotype for both traits, although her father had cystic fibrosis and a for the recessive allele for albinism. and her mother is albino. 4a. What is the genotype of the wife? 4b. What is the probability that a child of this couple is albino and has cystic fibrosis?
1. Fruit Flies and Genetics Research: Imagine you are working in a genetics lab with the fruit fly Drosophila melanogaster, a model organism for genetics research. You want to determine whether a trait you have discovered in fruit flies is dominant or recessive.• Explain how you would design an experiment to answer this question.• Predict what types of outcomes are possible. Which would indicate that the trait is dominant? Which would indicate that it is recessive?2. Model Genetic Organisms: Why are fruit flies considered a model genetic organism? Would humans fit this description?
Traits are are controlled by a single gene, such as corn color, can be used fo predictability of trait in inheritance in humans also. This is especially import for parents who may carry alleles that code for diseases. Parents can predic probabilities that their child might inherit a disease if they know their own genotype. Parents that are carriers (heterozygous) may not show disease, bu can still pass on a disease allele. Read the scenario below (in bold). Using a separate piece of paper and draw out a Punnett square, with required information (questions 1-5). The letter D will be used to represent the domina (healthy) allele. Tom and his wife Julie are both carriers for cystic fibrosis, an autosomal recessive disease. Draw a Punnett square and be sure to include the following information for full credit: 1. Place the parents alleles at the top and on the left side. 2. Write in the allele crosses inside the Punnett squares. 3. Write out the genotypes probabilities for an offspring. 4.…
1. In humans, widow’s peak (W) is dominant over having a straight hairline (w). If a homozygous man with a widow’s peak has a child with a woman with a straight hairline, what are the odds the child will have a widow’s peak? Show work. 2. Ellis-van Creveld syndrome is a recessive inherited condition that results in 6-fingered dwarfism. Two parents without this condition have with Ellis-van Creveld syndrome. What are the genotypes of the parents and offspring? What are the odds that the son will have a 6-fingered child if his partner is a woman who is heterozygous for the condition? Show work. 3. The gene for dangling earlobes is dominant over the gene for attached earlobes. A woman with attached earlobes has a child with a man with dangling earlobes whose mother had attached earlobes. What is the probability that this child will have attached lobes? Show work. 4. In humans, normal pigmentation is due to a dominant gene, while albinism is recessive. A normally pigmented man has a…
genetics oT the ANALYZING PEDIGREES Family histories are used to analyze traits in humans. Humans cannot be crossed at will like pea plants or maize! These family histories are represented as pedigrees where couplings and offspring are noted. Evaluate the two pedigrees below. Cystic Fibrosis: Normal male Key Male with cf O Normal female Female with cf Huntington's Disease: Hh hh Hh Hh hh hh hh Temale with HD (H O Nermal Female (h) Hh Male with HD th) hh O Normal Male (hh) Q11: What features characterize pedigrees of dominant traits? Q12: What features characterize pedigrees of recessive traits? 4 |Page
1. Discuss the basic structure and function of DNA as the genetic material. 2. Give the function of DNA in the transmission of trait from parent to offspring3. Discuss how Mendel formulated the Law of Inheritance in his pea plant experiment
1.Explain at least 3 factors that make corn more ideal than humans for studying inheritance patterns. 2. Chi-Square analysis are often used by scientists. Find an example of a study where scientists used Chi-Square analysis and briefly describe how it was used.
1. Fruit Flies and Genetics Research: Imagine you are working in a genetics lab with the fruit fly Drosophila melanogaster, a model organism for genetics research. You want to determine whether a trait you have discovered in fruit flies is dominant or recessive.• Explain how you would design an experiment to answer this question.• Predict what types of outcomes are possible. Which would indicate that the trait is dominant? Which would indicate that it is recessive?