In peas, the dominant R allele produces peas that are round, whereas the recessive r allele produces peas that are wrinkled. The dominant Y allele produces yellow peas, and the recessive y allele produces green peas. If two heterozygous round, yellow pea plants (RrYy) were crossed (RrYy X RrYy), answer the following regarding the possible progeny.  Question: What proportion of the offspring will have the genotype Yy?   Question 11 options:   1/4   1/2   3/4   1/16

A Pea plant with axial flower position, tall stem length, and green seed pod color is cross with another pea plant that has axial flower position, dwarf stem length, and yellow seed pod color. Assume heterozygosity for all dominant trait. How many genotype will be formed from the cross?

A pure-bred male fruit fly with red eyes and short wings is mated with a pure-bred female fly with white eyes and long wings. If Red eyes and Long wings are dominant, indicate what the genotype and phenotype of the F1 would be. Then show the punnett square for the second generation (you do NOT  need to fill it out) and list the phenotypic ratio.

If two of the purple flowered offspring from the previous cross were crossed, what is the expected phenotypic ratio of the offspring?

In snapdragon plants, flower color follows an incomplete dominance inheritance pattern.  Homozygous dominant plants have red flowers, heterozygotes have pink flowers, and homozygous recessive plants have white flowers.  Complete the following cross and identify what percentage of the offspring are each color.  Cross- Homozygous dominant by heterozygous plants  what % have red flowers  what % have pink flowers  what % have white flowers

A pea heterozygous for plant height, pod shape and flower color was selfed. The progeny consisted of 272 tall, inflated pods, purple flowers; 92 tall, inflated, white flowers; 88 tall, flat pods, purple flowers; 93 dwarf, inflated, purple flowers; 35 tall, flat, white flowers; 31 dwarf inflated, white flowers; 29 dwarf, flat, purple flowers; 11 dwarf, flat, white flowers. Which alleles are dominant in this cross?

If a plant is tall, has round seeds and purple flowers, with the genotype of TTRREE is crossed with a plant that is short and has wrinkle seeds and white flowers with the genotype ttrree. What would be the offspring of their F1 generation and F2 generation like? Form a Punnett square and write the phenotypic ratio?

In onion, male sterility is produced when the nuclear genotype is aa and the mitochondrial gene S (sterile) are present. Any other combination of nuclear genotype and mitochondrial gene (including gene F for fertile) will result in a male fertile plant. Give the genotypic ratio and the phenotypic ratio or the percentage of male sterile and male fertile offspring that will be produced in the following crosses. 1. Aa + S male x aa + F female 2. Reciprocal cross of number 1. (Note that when we do reciprocal cross, we interchange/swap the genotypes of the parents (if there is a nuclear gene involved, you interchange the nuclear genotype as well). 3. Aa + S female x Aa + F male 4. Reciprocal cross of number 3.

In pea plants stem length is either long(dominant)  or short(recessive). 2 heterozygous long pea plants were crossed. The progeny included 402 pea plants, 308 of which were long and 94 of which were short. What is the ratio expected of long and short? 1:1  3:1 9:3:3:1 1:2:1

Two pea plants are crossed to make 1,000 offspring. All offspring possess long pods and round peas. Long pods (L) are dominant to short pods (l), and round peas are dominant (R) to wrinkled peas (r). Which of the following are possible genotypes of the parent plants?   LLRr × LlRr LLrr × llRR Llrr × llrr LLRR × llrr