~i will make you the brainliest! ~ genetics (refer to the following information to answer this question): a horticulturalist wants to produce geraniums with specific characteristics. she knows that the trait of red flowers is governed by the allele r(rr and rr) and the trait of the white flower is governed by the allele r(rr). the horticulturalist plans to cross a geranium that i true-breeding for red flowers that is true-breeding for white flowers. which punnett square best describes this cross? a) _| r | r | r| rr | rr | r| rr | rr | b) _| r | r | r| rr | rr | r | rr | rr | c) _| r | r | r| rr | rr | r| rr | rr |

C

Explanation:

The horticulturist is trying to perform a monohybrid cross involving a single gene coding for flower colour in geranium. The allele for red flower (R) is dominant over the allele for the white flower (r) because in an heterozygous state (Rr), the red allele masks the expression of the white allele.

The horticulturist crosses a truebreeding red-flowered geranium with a white-flowered geranium.

Note that, a true breeding plant is a plant that is genetically identical and have identical alleles for a specific trait (flower color in this case). Hence, the alleles of a truebreeding plant is homozygous i.e. same allele

Therefore a truebreeding red-flowered geranium will possess the genotype RR, while a truebreeding white-flowered geranium will have the genotype rr. In a cross using a punnet square, RR will produce gametes R, R while rr will produce gametes r, r.

All the offsprings as seen in the punnet square will possess the genotype Rr, which is heterozygous and phenotypically red-flowered

d i think its   answer d

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.