On Mendelian genetics The color of a plant flower is regulated by two pairs of non allelic genes a (a) and B (b). Gene a controls the synthesis of pigment (A: the appearance of pigment, AA and AA have the same effect), and gene B is the modifying gene, which weakens the depth of color (B: the appearance of modifying effect, BB and BB have different effects). F1 is obtained by crossing P1 (AABB, white) with P2 (AABB, red), The results show that F2 is red, pink and white, and their ratio is 3:6:7_________ (2) if haploid breeding was carried out on pink F1 plants, the phenotype and proportion of flower color of the plants were different_________ (3) what are the genotypes of white flower in F2? What is the percentage of homozygote in F2? (4) what is the probability of heterozygote in F2 red flower_______ I hope the experts can help me. I can't understand it all the time

On Mendelian genetics The color of a plant flower is regulated by two pairs of non allelic genes a (a) and B (b). Gene a controls the synthesis of pigment (A: the appearance of pigment, AA and AA have the same effect), and gene B is the modifying gene, which weakens the depth of color (B: the appearance of modifying effect, BB and BB have different effects). F1 is obtained by crossing P1 (AABB, white) with P2 (AABB, red), The results show that F2 is red, pink and white, and their ratio is 3:6:7_________ (2) if haploid breeding was carried out on pink F1 plants, the phenotype and proportion of flower color of the plants were different_________ (3) what are the genotypes of white flower in F2? What is the percentage of homozygote in F2? (4) what is the probability of heterozygote in F2 red flower_______ I hope the experts can help me. I can't understand it all the time

It's the interaction of two pairs of genes
(1) The genes are a and a respectively
(2) The F1 genotype was AABB, so four kinds of gametes, AB, AB, AB and AB, were produced
The phenotypes of AABB, AABB, AABB and AABB were white, red, white and white respectively
Therefore, the phenotype and ratio are: White: red = 3:1
(3) White flower: AABB or AABB or AABB or AABB or AABB
Therefore, there are five genotypes of white flower, and homozygotes account for 3 / 16
(4) The genotype of safflower is AABB and AABB, the ratio is 2:1, so the probability of heterozygosity is 2 / 3

Who is the father of modern genetics?

James Watson, the father of genetics

Who is the father of chemistry

The father of modern chemistry -- the father of John Dalton's modern chemistry -- the father of Anthony lavassie's chemistry -- the father of Anthony lavassie's organic chemistry -- the father of Liebig's modern organic synthesis -- the father of Woodward's Inorganic Chemistry -- the father of David's physical chemistry -- the father of Ostwald's polymer chemistry --

Contribution of Chinese Hybrid Rice and Yuan Longping!
1. Before there was no hybrid rice in the early stage, what was the average yield per mu of rice in our country? What was the total yield of rice? (some people said that the yield of 100 kg per mu was high yield in the past.)
2. Now that we have hybrid rice, what is the average yield per mu in our country? What is the total yield of rice? How many people can be supported by the annual yield (plus wheat)? For example, 1.5 billion people, and then the surplus 200 million people will be exported!
3. It is said that China's per mu yield will reach 900 kg in 2010! What's the concept? How many people can the annual yield (plus wheat) support?
Decline Ctrl + V!

Yuan Longping did make a great contribution to hybrid rice, but there were different levels of production and science and technology in different periods. For example, the hybrid rice varieties used in the 1960s and 1970s were still 200 kg or 300 kg, and some good varieties used in the past can now reach 400 kg or 500 kg. It is the result of the common progress of cultivation, fertilizer and pesticide science and technology, It is the result of the joint efforts of the technicians on the front of agricultural technology extension
The country should set up a banner in agricultural science and technology, that is Yuan Longping! Your three numbers are created by many scientific and technological personnel collectively. Please don't forget the old agricultural technology promoters who are running around in the fields all the year round at and below the county level!