In watermelons, bitter fruit (B) is dominant over sweet fruit (b), andyellow spots (S) are dominant over no spots (s). The genes for these two characteristics assort independently. A homozygous plant that has bitter fruit and yellow spots is crossed with a homozygous plant that has sweet fruit and no spots. The F1 are intercrossed to produce the F2. Q. What are the phenotypic ratios in the F2?

In triffid plants, the color trait and the spikiness trait are controled by two loci that assort independently. A true-breeding smooth green strain of triffids is crossed to a true-breeding spiky orange strain of triffids.  All of the F1 are spiky green.  The geneticist then performs two additional crosses: 1. she allows the F1 to self-fertilize 2. she crosses a plant from the F1 to a smooth orange strain. Choose all statements that are TRUE: Group of answer choices orange is dominant spiky is dominant all the progeny resulting from cross 1 (the selfing) will be smooth all the plants resulting from cross 2 will be orange green is dominant all the progeny resulting from cross 1 (the selfing) will be spiky smooth is dominant there will be mixture of smooth and spiky plants in the progeny resulting from cross 1 (the selfing) All the plants resulting from cross 2 will be green there will be a mixture of green and orange plants in the progeny resulting from cross 2

A white Labrador retriever of the genotype BB ee was crossed with a brown retriever of the genotype bb E e. What would their F1 offspring look like?

A. In summer squash, white fruit color (W) is dominant over yellow fruit color (w) and diskshaped fruit (D) is dominant over sphere-shaped fruit (d). If a squash plant true-breeding  for white, disk-shaped fruit is crossed with a plant heterozygous fruit, what will the phenotypic and genotypic ratios be?

In watermelons, bitter fruit (B) is dominant over sweet fruit (b), andyellow spots (S) are dominant over no spots (s). The genes for these two characteristics assort independently. A homozygous plant that has bitter fruit and yellow spots is crossed with a homozygous plant that has sweet fruit and no spots. The F1 are intercrossed to produce the F2. Q. If an F1 plant is backcrossed with the sweet, unspotted parent, what phenotypes and proportions are expected in the offspring?

Tomato Plants In tomato plants, round fruit (R) is dominant to oval fruit (r). Pure breeding plants with red and round fruit (FFRR) were crossed to pure breeding plants with yellow and oval fruit (ffrr). The red and round F1 progeny were then testcrossed to plants that were homozygous recessive for both genes (ffrr) with the following results: Phenotypes Number of Offspring Red and round 2 255 Red and oval 290 Yellow and round 310 Yellow and oval 2 145 Convert the expected phenotypic ratio from Part A into the expected probability for each of the four phenotypes and record them in the table below. Calculate the probability for each of the four phenotypes observed in the cross from the data presented at the beginning of the question by dividing the number of progeny in each class by the total number of progeny and record these in the table below. Probability = Number of Progeny in Phenotype Class ÷ Total Progeny  Compare the expected probabilities of each phenotype to…

How do you know which one number is for S/Tu or U/Tu I know both equals 36.6

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If a heterozygous F1 Tobacco plant was crossed to an albino plant, what is the expected number of green and white plants in the next generation? (show Punnett square)  A woman homozygous dominant for albinism marries a man who is homozygous recessive for albinism. What are the possible genotypes and phenotypes percentages for their offspring? A man that can roll his tongue is heterozygous for the trait marries a woman that cannot roll her tongue. They have a child. The rolling tongue is dominant to not rolling tongue. What is the man’s genotype for tongue rolling? The women? Show the Punnett square for the child’s genotype Give the probability (percent chance) that the child can or cannot roll their tongue. Oh no! The F1 and F2 generation seed packet labels were mixed around. How would we know which seeds we planted by observing the color of the leaves? (Hint: What are the genotypes of the two generations? What color leaves do they produce in what ratios?)

In cucumbers: warty (T) > smooth (t) dull (D) > glossy (d) warty, dull x smooth, glossy P: TTDD X ttdd F1: warty, dull x smooth, glossy TtDd x ttdd If RF between T and D loci known to be 24%, how many total non- recombinant progeny do you expect out of 200 total progeny?