In a certain bean, two genes control seed color (A & B). You cross a true...
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In
a certain bean, two genes control seed color (A & B). You cross
a true...
5. In Mendel's experiments, the pod color gene and the seed shape gene were located on...
5. In Mendel's experiments, the pod color gene and the seed shape gene were located on different chromosomes (in other words, they were not linked. They assort independently). Green pods (G) are dominant over yellow pods (g) and tall stems (T) are dominant over dwarf stems (t). You are given two true breeding plants (homozygous at both genes). In the parental (P) generation, one parent has green pods and dwarf stems and the second parent has yellow pods and tall...
2) Two true-breeding varieties of cucumbers (long and miniature) have been obtained. Long cucumbers are on average...
2) Two true-breeding varieties of cucumbers (long and miniature) have been obtained. Long cucumbers are on average 12 inches upon reaching maturity, whereas short ones are about 2 inches long. Performing a cross between these varieties, you find that the F1 cucumbers are all around 7 inches. What single-locus mode of inheritance would lead to this outcome? In the F2 generation, you obtain cucumbers in five discrete size categories: 2, 4.5, 7, 9.5, and 12 inches. Is this what you would have expected...
You perform a trihybrid cross: You cross true-breeding purple-flowered, round, yellow peas (PPRRYY) with true-breeding white-flowered,...
You perform a trihybrid cross: You cross true-breeding purple-flowered, round, yellow peas (PPRRYY) with true-breeding white-flowered, wrinkled, green peas (pprryy). You then cross the resulting F1 offspring together to generate an F2 generation. What is the probability of an F2 plant having white flowers and producing round, yellow peas?
In cucumbers, green color (W) is dominant over yellow color (w) and spiked cucumbers (D) are...
In cucumbers, green color (W) is dominant over yellow color (w) and spiked cucumbers (D) are dominant over smooth cucumbers (d). A cucumber plant true-breeding for green, spiked cucumbers is crossed with a plant true-breeding for yellow, smooth cucumbers. 1. What will the phenotypes and genotypes of the F1 generation be? 2. If the above F1 progeny are self-crossed, what ratio of the F2 offspring will be: WwDd wwDd WWDD wwDD 3. What ratio will have green spiked cucumbers? 4....
You are studying two genes in corn that you believe may be linked: seed shape and...
You are studying two genes in corn that you believe may be linked: seed shape and and kernel color. You cross two true-breeding corn plants (one with red kernels and round seeds to one with yellow kernels and wrinkled seeds) and receive all red- kerneled, round seed offspring. You then perform a test-cross using the F1 offspring and a yellow-kerneled, round seed corn and receive the following result: 610 red kernels, round seeds 90 yellow kernels, round seeds 100 red...
Question 2b) You are studying a flowering plant that produces remarkable bright green flowers in its...
Question 2b) You are studying a flowering plant that produces remarkable bright green flowers in its wild type. Your colleagues have discovered two new mutant lines of this plant. One new line breeds true for a yellow flower color. Another new line breeds true for a blue flower color. Your group does the following crosses and makes these observations: yellow X green ⇒ F1 is all green ⇒ F2 75% green and 25% yellow blue X green ⇒ F1 is...
please answer all QUESTION 4 You are examining linkage between the genes that contribute to vampire...
please answer all
QUESTION 4 You are examining linkage between the genes that contribute to vampire teeth morphology. L_long teeth Y_yellow teeth D_ sufficient dentin (dentin +) Il short teeth yy white teeth dd lacks sufficient dentin (dentin -) You cross a true breeding vampire that has long, yellow teeth that have a normal amount of dentin with a true breeding vampire that has short, white teeth that lack sufficient amounts of dentin. You then test cross one of the...
12. In the fruit of summer squash the absence of color is dominant to color. Colored fruit may be yellow (dom.) or green (rec.). What would you get if you mated a homozygous white, carrying the g...
12. In the fruit of summer squash the absence of color is dominant to color. Colored fruit may be yellow (dom.) or green (rec.). What would you get if you mated a homozygous white, carrying the genes for green color to a homozygous yellow squash? Cross the F1 to obtain an F2
12. In the fruit of summer squash the absence of color is dominant to color. Colored fruit may be yellow (dom.) or green (rec.). What would you get...
Question 12 only. Punnett's square analysis for the parental cross r Rr Rr 9) If we...
Question 12 only.
Punnett's square analysis for the parental cross r Rr Rr 9) If we used the above offspring (F1) in a new cross, what would be the genotypes and phenotypes of the offspring of the Fz generation? 10) What is the genotypic ratio of the F2 generation? 11) What is the phenotypic ratio of the F2 generation? 12) What would be the genotypic and phenotypic ratios of offspring from a cross between a homozygous recessive parent (r r)...
9) A flower breeder notices that a cross between true-breeding red roses and true-breeding white roses...
9) A flower breeder notices that a cross between true-breeding red roses and true-breeding white roses makes all red-flowering F1 offspring. Interbreeding these F1 offspring, she gets 100 red-flowering roses, 40 pink-flowering roses, and 44 white-flowering roses in the F2 generation. What are the genotypes of the parents, F1 offspring, and F2 offspring? What is the probable mode of inheritance? Check your answer with the appropriate statistical test.
5. In Mendel's experiments, the pod color gene and the seed shape gene were located on different chromosomes (in other words, they were not linked. They assort independently). Green pods (G) are dominant over yellow pods (g) and tall stems (T) are dominant over dwarf stems (t). You are given two true breeding plants (homozygous at both genes). In the parental (P) generation, one parent has green pods and dwarf stems and the second parent has yellow pods and tall...
You are studying two genes in corn that you believe may be linked: seed shape and and kernel color. You cross two true-breeding corn plants (one with red kernels and round seeds to one with yellow kernels and wrinkled seeds) and receive all red- kerneled, round seed offspring. You then perform a test-cross using the F1 offspring and a yellow-kerneled, round seed corn and receive the following result: 610 red kernels, round seeds 90 yellow kernels, round seeds 100 red...
please answer all
QUESTION 4 You are examining linkage between the genes that contribute to vampire teeth morphology. L_long teeth Y_yellow teeth D_ sufficient dentin (dentin +) Il short teeth yy white teeth dd lacks sufficient dentin (dentin -) You cross a true breeding vampire that has long, yellow teeth that have a normal amount of dentin with a true breeding vampire that has short, white teeth that lack sufficient amounts of dentin. You then test cross one of the...
12. In the fruit of summer squash the absence of color is dominant to color. Colored fruit may be yellow (dom.) or green (rec.). What would you get if you mated a homozygous white, carrying the genes for green color to a homozygous yellow squash? Cross the F1 to obtain an F2
12. In the fruit of summer squash the absence of color is dominant to color. Colored fruit may be yellow (dom.) or green (rec.). What would you get...
Question 12 only.
Punnett's square analysis for the parental cross r Rr Rr 9) If we used the above offspring (F1) in a new cross, what would be the genotypes and phenotypes of the offspring of the Fz generation? 10) What is the genotypic ratio of the F2 generation? 11) What is the phenotypic ratio of the F2 generation? 12) What would be the genotypic and phenotypic ratios of offspring from a cross between a homozygous recessive parent (r r)...
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