Homework Answers
7. I should conduct a test cross (cross with a homozygous recessive [tt] pea plant). If the cross produces all tall pea plant (Tt) then we can say the parent pea plant is in homozygous dominant (TT) condition. If 50% of the progeny are dwarf (tt), then we can say that the parent pea plant is in heterozygous (Tt) condition.
8. The inheritance pattern is co-dominance. The genotypes of the parents are LMLM and LNLN.
9. Genotype of medium tailed mother rat is TMTS. Genotype of the father rat is TLTS. TL (allele responsible for long tail) and TM (allele responsible for medium length tail) alleles are dominant over TS (allele responsible for short tail). The genotypes of the offsprings are TLTM/TLTS (long tail), TMTM/TMTS (medium length tail), TSTS (short tail).
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7. In peas, tallness is dominant over dwarfness. How might you determine the genotype of a...
One-Gene Crosses 1. In Drosophila, gray body color is dominant over black body color. By crossing...
One-Gene Crosses 1. In Drosophila, gray body color is dominant over black body color. By crossing a heterozygous gray-bodied fly with a black-bodied fly, one hundred offspring resulted. How many would be expected to have black bodies? 7 2. Albinism, the lack of pigment, occurs commonly in animals and is always recessive to normal pigmentation. Ten brown and eight albino mice were born to parents which were likewise brown and albino. What are the genotypes of both parents? 3. The...
6) A son with cystic fibrosis (autosomal recessive) is born to a couple who appear to...
6) A son with cystic fibrosis (autosomal recessive) is born to a couple who appear to be normal. What is the possible genotype of the parents? 7) A man who is suffering from Huntington's Disease (Autosomal dominant) and is heterozygous for this trait marries a normal woman. What are the chances of this couple having a diseased child? (show Punnett square) 8) Two short tailed (Manx) cats are bred together. They produce three kittens with long tails, six with short...
is In guinea pigs, black coat color (B) is dominant to white (b), and rough color...
is In guinea pigs, black coat color (B) is dominant to white (b), and rough color (R) dominant to smooth (o). What following crosses a) BBRR x bbrr b) BBrr x bbRR c) Bbrr x bbRr d) BBRr x BbRr e) BbRr x BbRr 2)The presence of one of the Rh antigens on the surface of the red blood cells (Rh+) in humans is produced by a dominant gene R. Th negative cells are produced by the recessive genotype rr....
1) Answering the following genetics problems using punnett squares and determine the type of inheritance of...
1) Answering the following genetics problems using punnett squares and determine the type of inheritance of each. State phentypes as a %. A. A woman with AB blood type marries a man with BO blood type. What are the possible genotypes of their offspring? B. Rh+ factor is dominant over Rh- factor. A man who is Rh- marries a woman who is heterozygous for Rh factor. What is the likelihood that they will have a child who is Rh+? C....
6) A colorblind female, blood type A married 2 different men. One man (#1) had type...
6) A colorblind female, blood type A married 2 different men. One man (#1) had type AB blood and was colorblind. The other man (#2) had type B blood and normal color vision. Three offspring resulted from the marriages. If possible, determine the father of each of the following offspring. a) female, Type A blood, normal color vision b) male, Type AB blood, colorblind c) female, Type B blood, colorblind In tomatoes, red fruit color is dominant to yellow. Suppose...
For these questions, you are using the A, B, and O to represent the alleles in...
For these questions, you are using the A, B, and O to represent the alleles in this example. The ABO blood system works in a Mendelian fashion, but has 3 possible alleles at one locus (A, B, and O alleles). Each person can have only 2 of those alleles in their genotype. A and B are both dominant (and so can be co-dominant), and O is recessive to both A and B. So, for example, if you have B blood...
For questions 5 and 6: Tall (T) is dominant to short (t) 5. Ifa homozygous tall...
For questions 5 and 6: Tall (T) is dominant to short (t) 5. Ifa homozygous tall plant is crossed with a short plant, what percentage of the offspring will be tall? , The two parents used in this cross are called as breeding parents. 6. Iftwo heterozygous tall plants from the above are crossed, what percentage of the offspring will be short? For questions 7, 8 and 9: Purple (R) is dominant to white (r) If two white flowered plants...
Please show the punnett squares where needed. Need this done ASAP thx. 1. In pea plants,...
Please show the punnett squares where needed. Need this done
ASAP thx.
1. In pea plants, Round seeds are dominant (R) and wrinkled seed are recessive (r). a. What would the parent look like(phenotype) if its genotype is RR? What is the name of this type of genotype? Use genetic terms you learned. b. What would the parent phenotype be is it was Rr? What is the name of this type of genotype? c. What would the parent genotype be...
2. A widow's peak (W) is dominant to a straight hairline (w), and unattached earlobes (E)...
2. A widow's peak (W) is dominant to a straight hairline (w), and unattached earlobes (E) is dominant to attached earlobes (e). Two parents, each with the genotype WwEe, have kids. a. What proportion of their offspring will have a widow's peak and unattached earlobes? b. What proportion will have unattached earlobes but have either a widow's peak or a straight hairline? 3. A woman with normal color vision, whose mother was colorblind, has children with a man with normal...
Select from the terms below to answer the question below Each term is used once. A)...
Select from the terms below to answer the question below Each term is used once. A) Codominance B) Incomplete Dominance C) Complete Dominance D) Pleiotropy E) Genetic Heterogeneity F) Epistasis G) Epigenesis True breeding “long” radishes were crossed with true breeding “round” radishes.The offspring of this cross resulted in 100% “oval” radishes. This type of inheritance is most consistent with _________ Marfan syndrome is caused by an autosomal dominant gene that has multiple phenotypic effects such as lengthened long...
One-Gene Crosses 1. In Drosophila, gray body color is dominant over black body color. By crossing a heterozygous gray-bodied fly with a black-bodied fly, one hundred offspring resulted. How many would be expected to have black bodies? 7 2. Albinism, the lack of pigment, occurs commonly in animals and is always recessive to normal pigmentation. Ten brown and eight albino mice were born to parents which were likewise brown and albino. What are the genotypes of both parents? 3. The...
6) A son with cystic fibrosis (autosomal recessive) is born to a couple who appear to be normal. What is the possible genotype of the parents? 7) A man who is suffering from Huntington's Disease (Autosomal dominant) and is heterozygous for this trait marries a normal woman. What are the chances of this couple having a diseased child? (show Punnett square) 8) Two short tailed (Manx) cats are bred together. They produce three kittens with long tails, six with short...
is In guinea pigs, black coat color (B) is dominant to white (b), and rough color (R) dominant to smooth (o). What following crosses a) BBRR x bbrr b) BBrr x bbRR c) Bbrr x bbRr d) BBRr x BbRr e) BbRr x BbRr 2)The presence of one of the Rh antigens on the surface of the red blood cells (Rh+) in humans is produced by a dominant gene R. Th negative cells are produced by the recessive genotype rr....
6) A colorblind female, blood type A married 2 different men. One man (#1) had type AB blood and was colorblind. The other man (#2) had type B blood and normal color vision. Three offspring resulted from the marriages. If possible, determine the father of each of the following offspring. a) female, Type A blood, normal color vision b) male, Type AB blood, colorblind c) female, Type B blood, colorblind In tomatoes, red fruit color is dominant to yellow. Suppose...
For questions 5 and 6: Tall (T) is dominant to short (t) 5. Ifa homozygous tall plant is crossed with a short plant, what percentage of the offspring will be tall? , The two parents used in this cross are called as breeding parents. 6. Iftwo heterozygous tall plants from the above are crossed, what percentage of the offspring will be short? For questions 7, 8 and 9: Purple (R) is dominant to white (r) If two white flowered plants...
Please show the punnett squares where needed. Need this done
ASAP thx.
1. In pea plants, Round seeds are dominant (R) and wrinkled seed are recessive (r). a. What would the parent look like(phenotype) if its genotype is RR? What is the name of this type of genotype? Use genetic terms you learned. b. What would the parent phenotype be is it was Rr? What is the name of this type of genotype? c. What would the parent genotype be...
2. A widow's peak (W) is dominant to a straight hairline (w), and unattached earlobes (E) is dominant to attached earlobes (e). Two parents, each with the genotype WwEe, have kids. a. What proportion of their offspring will have a widow's peak and unattached earlobes? b. What proportion will have unattached earlobes but have either a widow's peak or a straight hairline? 3. A woman with normal color vision, whose mother was colorblind, has children with a man with normal...
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