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- Brown hair, H, is dominant to blonde hair, h. A male homozygous for brown hair conceives with a female with blonde hair. Calculate the genotypic and phenotypic ratios of the offspring. (Show all 5 steps)Long eyelashes, E, is dominant to short eyelashes, e. A male homozygous for long eyelashes conceives with a female heterozygous for long eyelashes. Calculate the genotypic and phenotypic ratios of the offspring. (Show all 5 steps)Incomplete Dominance: 1) On the planet Iota Geminorum IV there exists a small hairy animal known as a tribble. It comes in three colors blue, red, and purple. This trait is controlled by a single locus with incompletre dominance. A homozygous CBCB is blue, a homozygous CRCR is red, and a heterozygous CBCR is purple. a. What would be the genotypes and phenotypes of the offspring if a blue tribble were crossed with a red one? b. If the offspring in #1 were crossed what would the genotypic and phenotypic ratios be of this generation?
- Imagine you have a blood group of "X" which is recessive and expressed by xx. The dominant blood groups are Y and Z, where homozygous of these alleles are expressed as YY and ZZ, respectively. What will be the genotype of your parents blood group? Why? Please explain in your own words. [Max 200 words]Baldness is a sex linked trait. What parental genotypes could produce a bald woman? Use H for normal hair And h for bald Draw 6 punnet square 3 for female and 3 for male| 3 4 |IL 1 I Section 5: Trihybrid cross and Laws of probability For a trihybrid cross, in which inheritance of alleles for three genes is tracked, drawing a Punnett square that combines all three genes may not be practical. Instead the laws of probability may be used. The product law of probabilities says that when alleles for separate genes segregate independently, we can figure out the probability of a particular combined genotype by multiplying the probability of the alleles for each gene. 13. We cross a homozygous tall pea plant with yellow, round seeds to a homozygous dwarf pea plant with green, wrinkled seeds. All the F1 offspring are all tall plants with yellow, round seeds. a. What are the expected F2 ratios (use fractions) of tall and dwarf plants? b. What are the expected F2 ratios (use fractions) of yellow and green seeds? C. What are the expected F2 ratios (use fractions) of round and wrinkled seeds? d. What are the possible F2 combined phenotypes and their expected ratios…
- Match each of the definitions and examples to the form of dominance or epistasis exhibited. Choices can be used more than once, and every choice will be used at least once. Two alleles of one gene are responsible for (Choose ] eggplant color, and eggplants can be purple and white Alleles at one gene mask the effect of another gene [ Choose ] The heterozygous phenotype has both [ Choose ) homozygous phenotypes equally expressed One allele masks the effect of another allele [ Choose) Two alleles of one gene are responsible for Choose ] eggplant color, and eggplants can be purple, lavender, and white Alleles at two genes interact to influence the same phenotype, but no allele masks the other [ Choose]Match the non-Mendelian genetic terms with their descriptor. Genetic and environmental factors collectively influence a phenotypic expression 1. Pleiotropy Two or more genes have a cumulative effect on a 2. Epitasis single phenotype 3. Polygenic Inheritance A single gene has more than one phenotypic effect 4. Multifactorial Effect A gene at one locus has an effect on a gene at another locusIncomplete dominance is characterized by a cross between homozygous dominant and recessive genes that will result in an intermediate trait assume the following sets of genes is a human being: BB – black-colored pupil HH – straight hair Bb – blue-colored pupil Hh – wavy hair hh – curly hair A husband and wife, BBHH x bbHh, want to know the probability of having a child with a blue-colored pupil and wavy hair. What will you tell them? O There is a ¼ chance that the offspring will have blue-colored pupils and wavy hair. O There is a ½ chance that the offspring will have blue-colored pupils and wavy hair. O There is no chance that the offspring will have blue-colored pupils and wavy hair. O Impossible to determine.
- When crossing normal-colored mice with other albino mice, all the F1 mice were normal. State the phenotypic and genotypic ratios for F2. Albinism is determined by a recessive allele, the dominant allele is pigmented, assign alleles.Assumptions: . If the parent expresses the trait, they are homozygous dominant If the child/children express the trait but the parents do not, the parents are heterozygous. Traits selected: Brown Hair/Eyes And Widows Peak Write the Letters you will be using n the Punnet square for each trait: _Ww Bb_and_ww Bb_ Father Genotype: WW Bb Mother Genotype: ww Bb Parent Gametes possible gametes: possible gametes: Do you have the phenotype of either of the traits in the cross? If you do, which one? Are there any other offspring with either trait? Which trait? Which phenotypic probability did you fall into? Which phenotypic probability did other offspring fall into? IPredict the outcomes of the following situations. genotype of the parents Punnett square genotypic ratio phenotypic ratio conclusion/answer to the question(s) Mr. Dalisay comes from an elite family in the province who desperately wanted to have a boy as his first born child so that his father, Mr. Flavio Dalisay III, would hand over the family sacred relic, the Balaraw of Panday, to him instead of his other brother. There were rumors that Mr. Dalisay arranged for the exchange of the babies in the hospital to secure his heir. Mr. and Mrs. Lizardo received baby #1 and Mr. and Mrs. Dalisay received baby #2. Is this rumor true? Blood typing tests on the parents and the babies showed the following results: Mr. Lizardo: Type A Mr. Dalisay: Type AB Mrs. Lizardo: Type O Mr. Dalisay: Type O Baby #1 (Girl): Type A Baby #2 (Boy): Type O Were the babies switched? How do you know whether they were, or they weren’t?
