In cucumbers: Dull fruit (D) is dominant to glossy (d) Orange fruit (R) is dominant to cream (r) Bitter cotyledons (B) are dominant to nonbitter (b) A cucumber with the genotype ddRrBb was crossed to a cucumber with the genotype DdRrBb using a branch diagram, determine the probability that an offspring from this cross will be glossy and cream with bitter cotyledons? (Type in as a decimal and round to 6 decimal digits.) Answer:
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The genotype ddRrBb can produce the gametes dRb, dRB, drb, and drB. The genotype DdRrBb can produce the gametes DRB, DrB, DRb, Drb, dRB, dRb, drB, and drb. Show more…
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In cucumbers: Dull fruit (D) is dominant to glossy (d) Orange fruit (R) is dominant to cream (r) Bitter cotyledons (B) are dominant to nonbitter (b) A cucumber with the genotype ddRrBb was crossed to a cucumber with the genotype DdRrBb. Using a branch diagram, determine the probability that an offspring from this cross will be dull and orange with bitter cotyledons? (Type in as a decimal and round to 6 decimal digits.)
Adi S.
In cucumbers, dull fruit (D) is dominant over glossy fruit (d), orange fruit (R) is dominant over cream fruit (r), and bitter cotyledons (B) are dominant over non-bitter cotyledons (b). The three characters are encoded by genes located on different pairs of chromosomes. A plant homozygous for dull, orange fruit and bitter cotyledons is crossed with a plant that has glossy, cream fruit and non-bitter cotyledons. The F1 are intercrossed to produce the F2. a. Give the phenotypes and their expected proportions in the F2. b. An F1 plant is crossed with a plant that has glossy, cream fruit and nonbitter cotyledons. Give the phenotypes and expected proportions among the progeny of this cross.
Madhur L.
In cucumbers, dull fruit $(D)$ is dominant over glossy fruit $(d),$ orange fruit $(R)$ is dominant over cream fruit $(r),$ and bitter cotyledons $(B)$ are dominant over nonbitter cotyledons $(b) .$ The three characters are encoded by genes located on different pairs of chromosomes. A plant homozygous for dull, orange fruit and bitter cotyledons is crossed with a plant that has glossy, cream fruit and nonbitter cotyledons. The $\mathrm{F}_{1}$ are intercrossed to produce the $\mathrm{F}_{2}$. a. Give the phenotypes and their expected proportions in the $\mathrm{F}_{2}$ b. An $F_{1}$ plant is crossed with a plant that has glossy, cream fruit and nonbitter cotyledons. Give the phenotypes and expected proportions among the progeny of this cross.
Mathew B.
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