1. A man has the genotype BbEE. He has brown hair and free earlobes. This man met a woman with the genotype BBee. If the man and woman mated, what would be the genotypes and phenotypes of their offspring? a. What are the gametes of the parents? Put them in Punnett square and complete the genotypes of offspring:
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- Which of the following represent the gametes that an individual with the genotype AABB can produce? О В, аВ AB O Ab, ab О АВ, Ab, aB, ab О АА, В, аа, b3. A man is heterozygous for the two genes A and B. How many different types of gametes can he produce, and in what proportions? Write out the genotype (or allele combination) of each possible gamete. 4. A man with blood type A and a women with blood type B have three children. A daughter with AB and two sons, one with type B and one with type O blood. What are the genotypes of the parents? 5. Draw a simple pedigree for the following family tree. A man and a woman have three children: a daughter, then two sons. The daughter marries and has monozygotic twin girls (identical twins). The youngest son in generation II is affected with albinism. (Use proper pedigree symbols; draw, scan and add picture to document; do not submit picture independently).A. heterozygous blue-eyed man is marrying a homozygous brown-ayed woman. Determine the ratio of the following from the offspring. B. Genotype C. Phenotype
- 1. If the allelic composition of a gene is Aa, the genotype is said to be (homozygous, heterozygous). What is the probability of having "a" allele in gametes? 2. For a genotype of AaBb, what are the possible allele compositions in gametes? 3. What are the possible genotypes and phenotypes ("A" phenotype or "a" phenotype) in the offspring of a monohybrid cross Aa x Aa? 4. If the organism display a dominant phenotype for a trait ("A" phenotype), how does one determine if the genotype is homozygous or heterozygous? Please use the Punnett square to explain. 5. How many possible genotypes are there in the offspring of a dihybrid cross AaBb x AaBb? What are the possible phenotypes for such a cross? What is the phenotypic ratio for AB : Ab : aB : ab? D Focus 72°F DEA F4 PrtScr Insert Hor F5 F6 F7 F8 F9 F10 F11 F12 24 & 3. 8 E R T Y UB. The two rabbits with these corresponding genotypes were mated; CCch X CCh . Do the cross and answer the following questions. How many phenotypes will there be for the offspring? How about the genotypes? What is the percentage of agouti offspring to come out? What is/are the other phenotype/s of the offspring besides agouti?31 Two parents both have the following genotype: XXYYZZ X XXYYZZ What is the probability that they will have a child with this genotype: XxYyZz Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a 1/4 b 1/2 1/8 d.
- 1. In humans, brown eyes (B) are dominant over blue (b). A brown-eyed man marries a blue-eyed woman and they have three children, two of whom are brown-eyed and one of whom is blue-eye a. Draw the Punnett square that illustrates this marriage b. What is the man's genotype? c. What are the genotypes of the children?In humans, free earlobes are a dominant characteristic over attached earlobes. A person who has homozygous free earlobes marries someone who has attached earlobes. What percentage of the offspring have the homozygous dominant genotype, FF?A woman is homozygous dominant for short fingers (F). She marries a normal man. Will any of her children have long fingers? Use a punnett square to prove your answer.
- Sickle-cell disease is an inherited chronic blood disease caused by an autosomal recessive allele. Suppose a man with sickle-cell disease fathers a child by a woman who is a carrier for sickle-cell disease. What are the chances their children will get the disease? O percent 25 percent 50 percent 75 percentBrown eyes are dominant over blue. This is NOTA sex-linked trait. If a blue-eyed colorblind woman marries a normal visioned man who is homozygous for brown eye color, what kind of children might they expect with respect to these two traits? 5. Genotype of woman _Genotype of man What two genotypes are possible in the children? If one of the sons in turn marries a heterozygous brown-eyed, normal visioned woman, not a carrier, what kinds of children might they expect? Genotypes Phenotypes1. How many different types of gametes can be produced by an individual with the genotype Yy Ww Pp ee Bb? 2. If an individual with the genotype Yy Ww Pp ee Bb is crossed with another individual with the same genotype, what proportion of offspring will be homozygous recessive at all genes? 3. If an individual with genotype Yy Ww Pp ee Bb is crossed with an individual with the same genotype, what proportion of offspring will have the dominant phenotype for the four heterozygous loci?