Homework Answers
| t | t | |
| T | Tt | Tt |
| t | tt | tt |
Tt * tt ------> parent
T t t t ------> gamates
2 Tt : 2 tt ----------> offspring
Phenotypic ratio = 50 % tall and 50% short , so ratio is 1 : 1 ( correct answer )
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In
pea plants, tall (T) is dominant and short (t) id recessive.
A heterozygous tall plant...
2) In wild yarrow, short plants are genetically recessive; tall plants are dominant a) A short...
2) In wild yarrow, short plants are genetically recessive; tall plants are dominant a) A short plant is pollinated by a heterozygous tall plant. What genotypic and phenotypic outcomes would you expect for their offspring? b) A homozygous tall plant is pollinated by a heterozygous tall plant. What genotypic and phenotypic outcomes would you expect for their offspring?
A heterozygous pea plant that is tall with purple flower, TtPp, is allowed to self-fertilize. Tall...
A heterozygous pea plant that is tall with purple flower, TtPp, is allowed to self-fertilize. Tall (T) is dominant over dwarf (t), Purple (P) is dominant over white (p). In the offspring, the probability of plants that are short with purple flowers will be?
Determine the following if a pea plant that is heterozygous for these two alleles is crossed...
Determine the following if a pea plant that is heterozygous for these two alleles is crossed to a plant that is homozygous for the dominant allele. Phenotype Number of smooth seed coat: _________ Number of wrinkled seed coat: _________ Phenotypic ratio:___________ Genotype Number of homozygous dominant:___________ Number of heterozygous:___________ Number of homozygous recessive:___________ Genotypic ratio: _________ 2.3 Determine the following if a pea plant that is heterozygous for these two alleles is crossed to a plant that is also heterozygous....
In corn plants, normal green pigmentation is dominant to albinism. If two heterozygous plants are crossed:...
In corn plants, normal green pigmentation is dominant to albinism. If two heterozygous plants are crossed: a) what are the parent plant genotypes? b) what is the expected phenotypic ratio for the offspring?
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...
In pea plants, height is controlled by a single gene and the tall allele (T) is...
In pea plants, height is controlled by a single gene and the tall allele (T) is dominant to the short allele (t). You find a tall pea plant in your yard and cross it with a short pea plant. It gives rise to 43 tall offspring and 35 short offspring. What is the genotype of the tall parent plant? Answers: Tt tt TT
Genetics Problems If the dominant allele K is necessary for hearing, and the dominant allele M...
Genetics Problems If the dominant allele K is necessary for hearing, and the dominant allele M results in deafness no matter what alleles are present, what percentage of the offspring produced by the cross kkMm x Kkmm will be deaf? 2. A tall pea plant is crossed with a recessive dwarf pea plant. What will the phenotypic and genotypic ratio of offspring be if The tall plant was TT? a. TX tt
Genetics Problems If the dominant allele K is...
GENETICS: Assume that a cross is made between a heterozygous tall pea plant and a homozygous...
GENETICS:
Assume that a cross is made between a heterozygous tall pea plant and a homozygous short pea plant. Fifty offspring are produced in the following frequency: 30 = tall; 20 = short What frequency of tall and short plants is expected? Compute a Chi-square value associated with the appropriate test of significance. How many degrees of freedom are associated with this test of significance?
Questions 97-98 refer to this information ln pea plants, tal () is dominant to short (e)....
Questions 97-98 refer to this information ln pea plants, tal () is dominant to short (e). Green seed (G) is dominant to yellow (g). These genes are located on actosomes 97. i two heterorygous tall, green seeded plants are crossed, what proportion of their offspring will be short, yelow seeded plants? a· 0/16 b 9/ e vi6 116 if a green seeded plant is crossed with a yellow plant and 6 out of 10 offspring are yellow seeded, what is...
Punnett Square for Question #4 is a the top Punnett Square Genotypic ratio: Phenotypic ratio: 5....
Punnett Square for Question #4 is a the top
Punnett Square Genotypic ratio: Phenotypic ratio: 5. Purple flowers (P) are completely dominant over white flowers (p). If a pea plant is heterozygous for purple flowers, can any of this plant's offspring have all purple flowers? Think about the different genotypes with which you can cross the hetero- zygous parent: homozygous dominant, heterozygous, and homozygous recessive. Use three Punnett squares to show your work for each possible phenotype. Heterozygous purple pea...
2) In wild yarrow, short plants are genetically recessive; tall plants are dominant a) A short plant is pollinated by a heterozygous tall plant. What genotypic and phenotypic outcomes would you expect for their offspring? b) A homozygous tall plant is pollinated by a heterozygous tall plant. What genotypic and phenotypic outcomes would you expect for their offspring?
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...
Genetics Problems If the dominant allele K is necessary for hearing, and the dominant allele M results in deafness no matter what alleles are present, what percentage of the offspring produced by the cross kkMm x Kkmm will be deaf? 2. A tall pea plant is crossed with a recessive dwarf pea plant. What will the phenotypic and genotypic ratio of offspring be if The tall plant was TT? a. TX tt
Genetics Problems If the dominant allele K is...
GENETICS:
Assume that a cross is made between a heterozygous tall pea plant and a homozygous short pea plant. Fifty offspring are produced in the following frequency: 30 = tall; 20 = short What frequency of tall and short plants is expected? Compute a Chi-square value associated with the appropriate test of significance. How many degrees of freedom are associated with this test of significance?
Questions 97-98 refer to this information ln pea plants, tal () is dominant to short (e). Green seed (G) is dominant to yellow (g). These genes are located on actosomes 97. i two heterorygous tall, green seeded plants are crossed, what proportion of their offspring will be short, yelow seeded plants? a· 0/16 b 9/ e vi6 116 if a green seeded plant is crossed with a yellow plant and 6 out of 10 offspring are yellow seeded, what is...
Punnett Square for Question #4 is a the top
Punnett Square Genotypic ratio: Phenotypic ratio: 5. Purple flowers (P) are completely dominant over white flowers (p). If a pea plant is heterozygous for purple flowers, can any of this plant's offspring have all purple flowers? Think about the different genotypes with which you can cross the hetero- zygous parent: homozygous dominant, heterozygous, and homozygous recessive. Use three Punnett squares to show your work for each possible phenotype. Heterozygous purple pea...
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