In humans, the ability to roll the tongue is a dominant trait. The inability to roll the tongue is a recessive trait. If two individuals that are homozygous recessive for this trait have a child, what is the chance that the child will be able to roll his tongue? Group of answer choices 0 % 25% 50% 100%
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- In people, the trait for colorblindness (Xb) is a recessive sex linked trait and normal vision (XB) is dominant. If a female who is heterozygous for colorblindness has children with a man who has normal vision, what percent of their male children would be expected to be color blind? 0% 50% 100% 25%When are recessive alleles expressed? Group of answer choices When the dominant allele is not present in a genotype When a dominant and recessive allele are both present in a genotype When two dominant alleles are present in a genotype When the recessive allele is not present in a genotypeBeing double jointed is a dominant trait found in humans and is designated here by the letter D. The recessive allele is designated by the letter d. A homozygous dominant mother and a homozygous recessive father want to have children. What percentage of their kids would be predicted to be heterozygotes, homozygous dominant and homozygous recessive? What is the only genotype of two parents that would ensure that their offspring would not be double jointed?
- Rehpogs are mythical creatures. They are small and not very smart. Rehpogs live on the ground in a flat, warm habitat. Their fur texture and color ranges from thick purple fur to thin pink fur, depending on allele distribution. The dominant fur allele (R) codes for thick purple fur. The recessive allele (r) codes for thin pink fur. REMEMBER: a phenotype (fur color) is the physical expression of a genotype (two- letter code for the alleles present in that individual). Each individual has two alleles for fur color: $ RR genotype is homozygous dominant = Thick purple fur phenotype Rr genotype is heterozygous = Thick purple fur (because of the presence of one dominant allele) XX genotype is homozygous recessive = Thin pink fur (because of the absence of a dominant allele) For the purposes of this experiment, Rehpogs mate once per year and produce two offspring each year. Rehpogs are monogamous, faithful and fertile. dictions: On Part I A small population of genetically diverse Rehpogs…A couple, Jane and Biron, tell you that Jane's sister Maureen has Hurler syndrome, which is a monogenic disease caused by a recessive allele. Neither Jane or either of her parents are affected. They are concerned that they might have a child with the same disorder. Knowing that the frequency of affected individuals is 1 in 100,000, what is the probability that this couple's first child will have Hurler syndrome? Show workThe comb shape of chickens is an example of an interesting inheritance pattern. Two genes, each with a dominant and recessive allele, determine comb phenotypes as follows: Comb Shape Description Genotype Single Comb homozygous recessive for both r and p rrpp Walnut comb both dominant alleles are present; R and P alleles are present R_P_ Pea comb the dominant allele P is present and the dominant allele R is absent rrP_ Rose comb the dominant allele R is present and the dominant allele P is absent R_pp Which of the following represents the correct phenotypes of the F2 offspring? Select one: a. Phenotype Single Walnut Pea Rose 9/16 3/16 3/16 1/16 b. Phenotype Single Walnut Pea Rose 3/16 1/16 9/16 3/16 c. Phenotype Single Walnut Pea Rose 1/16 9/16 3/16 3/16 d. Phenotype Single Walnut Pea Rose 3/16 9/16 1/16 3/16
- The comb shape of chickens is an example of an interesting inheritance pattern. Two genes, each with a dominant and recessive allele, determine comb phenotypes as follows: Comb Shape Description Genotype Single Comb homozygous recessive for both r and p rrpp Walnut comb both dominant alleles are present; R and P alleles are present R_P_ Pea comb the dominant allele P is present and the dominant allele R is absent rrP_ Rose comb the dominant allele R is present and the dominant allele P is absent R_pp If the P1 generation is a rose comb (RRpp) crossed with a pea comb (rrPP), which of the following represents the correct genotype and phenotype of the F1 offspring? Select one: a. Genotype Phenotype RRPP Single comb b. Genotype Phenotype RrPp walnut comb c. Genotype Phenotype RrPp pea comb d. Genotype Phenotype RRPP walnut combPlease read the scenario below and answer the question (in bold) that follows: In humans, the ability to roll one's tongue is a dominant trait (T). A woman who can roll her tongue is married to a man who cannot roll his tongue. The couple's daughter, Nia, can roll her tongue though their son, Michael, cannot. If Nia were to (one day) marry a man who was heterozygous for the tongue-rolling trait, what percentage of their children would be able to roll their tongues? a. 0% b. 25% c. 50% d. 75% e. 100% MPut your thumb up (i.e., the “thumbs up” hand signal). Hypothetically (but not actually), if your thumb is bent then you exhibit the dominant phenotype, and if it is straight then you exhibit the recessive phenotype. Write your phenotype and all of your possible genotype(s) using the correct genetic terminology (do not just write letters like “Ee”). Next, if you had children with someone who showed the dominant phenotype, could these children show the recessive phenotype? Why or why not?
- In humans, the presence of freckles is a dominant trait and their absence is a recessive trait. The eyebrow shape is also a genetically inherited trait, with separated eyebrows being dominant and joined eyebrows being recessive. In a couple, the woman has freckles and separated eyebrows and she is heterozygous for both traits. The man does not have freckles but he has joined eyebrows. What is the probability that their offspring has freckles and separated eyebrowsIn humans, the allele for a long second toe (L) is dominant. The allele for short second toe (I) is recessive. A woman who is homozygous for the long toe trait marries a man who has a short second toe. What is the probability that this couple's child will have short second toes? Use a pencil and piece of paper to draw the Punnett square for this cross to help you determine the correct answer. 100% O 0% O 50% O 25% 4 Previous NextThe following is totally made up (not real). Hiccups show complete dominance. F is dominant and codes for Hiccups. f is recessive and codes for no hiccups If a person with genotype FF and a person with genotype Ff have children, what are all the possible genotypes of their children? Select all that apply. Group of answer choices 1. FF 2. Ff 3. ff