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4. If a aaBbCCddEe organism is allowed to self fertilize, how many progeny will have a...
Given the genotype AaBbCcDdEE a) How many kinds of gametes can this individual form? b) If...
Given the genotype AaBbCcDdEE a) How many kinds of gametes can this individual form? b) If selfing occurred, what fraction of the progeny would have the following genotype: AaBBccDdEE? A cross between two plants produces progeny which, through subsequent breeding experiments, are shown to fall into 27 genotypic classes. Assuming that complete dominance operates at all of the loci involved and that each locus has two alleles, a) At how many different loci are the parents heterozygous? b) How many...
4. A snail whose shell coils to the left undergoes self-fertilization. All the progeny have shells...
4. A snail whose shell coils to the left undergoes self-fertilization. All the progeny have shells that coil to the right. (a) What was the genotype of the left-coiling snail's mother? (2 pts) (b) What is the genotype of the left-coiling snail? (2 pts) (C) If the right-coiling progeny are individually self-fertilized, what phenotypes are expected in their progeny (generation 2) and in what frequencies? (2 pts)
2 scientists self - fertilize a blue flowered daisy and grow 100 progeny plants that consist...
2 scientists self - fertilize a blue flowered daisy and grow 100 progeny plants that consist of 55 blue - flowered plant, 22 purple - flowered plants and 23 white - flowered plants. One of them believes this is the result of segregation of two alleles at one locus and that progeny ratio is 1:2:1. The other think the progeny phenotypes are the result of two epistatic genes that the ratio is 9:3:4. They both ask you to resolve their...
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?
1. What is meant by self-fertilize vs. cross-fertilize (pollination)? How did Mendel assure his experiment was...
1. What is meant by self-fertilize vs. cross-fertilize (pollination)? How did Mendel assure his experiment was done correctly?
1. Let's say an individual is of the genotype AABbCcDdEe. a) How many different gamete types...
1. Let's say an individual is of the genotype AABbCcDdEe. a) How many different gamete types could he/she produce for could he/she produce for these traits ? another of the same genotype, what proportion of their b) If this individual were to mate with another of the same genotype, offspring would we expect to show all 5 of the dominant phenotypes expect to show all 5 of the dominant phenotypes? How about all 5 of the recessive phenotypes ? c)...
how many gametes will be formed for the following gene combinations? aabbccDdEe
how many gametes will be formed for the following gene combinations? aabbccDdEe
In a different plant species, flower color is controlled by two genes that contribute equally to...
In a different plant species, flower color is controlled by two genes that contribute equally to the final flower color. Plants with red flowers have the genotype: CRCR DRDR, while plants with white flowers have the genotype: CWCW DWDW. A red flowering plant was mated to a white flowering plant and all of the F1progeny had pink flowers. These pink flowered F1 plants were allowed to self-fertilize to produce F2progeny. What is the genotype of the F1 plants that produced...
I'm having trouble understanding this problem. The most frequent F2 progeny seem to have had crossover...
I'm having trouble understanding this problem. The most frequent
F2 progeny seem to have had crossover to me because the parents are
Aa Bb x aa bb but the progeny are Aa bb and aa Bb. I thought
parental progeny would have the same genotype as the parents. Can
you please explain how the most frequent progeny don't have
crossover? Thank you
In a dihybrid test cross the genotype of the F1 individual is Aa Bb and the tester genotype...
1) An organism is described as 2n = 30. How many chromosomes are in one meiotic...
1) An organism is described as 2n = 30. How many chromosomes are in one meiotic cell during prophase 2? 2) An organism is described as 2n = 30. How many chromatids per chromosome are in one meiotic cell during Anaphase 1? 3) An organism is described as 2n = 30. How many chromosomes are in one meiotic cell during metaphase 1? 4) An organism is described as 2n = 30. How many chromosomes are in one cell during G1...
4. A snail whose shell coils to the left undergoes self-fertilization. All the progeny have shells that coil to the right. (a) What was the genotype of the left-coiling snail's mother? (2 pts) (b) What is the genotype of the left-coiling snail? (2 pts) (C) If the right-coiling progeny are individually self-fertilized, what phenotypes are expected in their progeny (generation 2) and in what frequencies? (2 pts)
1. Let's say an individual is of the genotype AABbCcDdEe. a) How many different gamete types could he/she produce for could he/she produce for these traits ? another of the same genotype, what proportion of their b) If this individual were to mate with another of the same genotype, offspring would we expect to show all 5 of the dominant phenotypes expect to show all 5 of the dominant phenotypes? How about all 5 of the recessive phenotypes ? c)...
I'm having trouble understanding this problem. The most frequent
F2 progeny seem to have had crossover to me because the parents are
Aa Bb x aa bb but the progeny are Aa bb and aa Bb. I thought
parental progeny would have the same genotype as the parents. Can
you please explain how the most frequent progeny don't have
crossover? Thank you
In a dihybrid test cross the genotype of the F1 individual is Aa Bb and the tester genotype...
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