Tatuo aida investigated the genetic basis of color variation in the medaka (aplocheilus latipes), a small fish that occurs naturally in japan (t. aida. 1921. genetics 6: 554 573). aida found that genes at two loci (b, b and r, r) determine the color of the fish: fish with a dominant allele at both loci (b_r_ are brown, fish with a dominant allele at the b locus only (b_rr) are blue, fish with a dominant allele at the r locus only (bb r_) are red, and fish with recessive alleles at both loci (bb rr) are white. aida crossed a homozygous brown fish with a homozygous white fish. he then bac ccrossed the f1 with the homozygous white parent and obtained 230 brown fish, 220 blue fish, 280 red fish, and 270 white fish. write out the phenotypes and co responding genotypes of the individuals crossed in the described backcross and their progeny.

Which statement about relative potential energy of electrons is correct? a. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 2 s orbital of the second electron shell. b. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 3 p orbital of the third electron shell. c. an electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.

3test questions with answers on incomplete dominance

This problem has been solved! see the answeryou are investigating two traits in fruit flies controlled by one gene each. the b gene controls for body color (black or brown), while the r gene controls for body sculpture (rugose or smooth). after crossing rugose black flies with smooth brown flies, you obtain an f1 generation of 100% smooth black flies.what are the dominant alleles? (1 pt)what are the genotypes of the two parent flies to perform a dihybrid test cross? (1 pt)after running a dihybrid test cross, you find 1000 offspring with the following phenotypes: , rugose406black, smooth86brown, rugose94brown, smooth4141000fill in the expected column with the expected number of offspring in each class of phenotypes. (1 pt)what phenotype classes represent the recombinant offspring? (1 pt each)calculate the relative genetic distance between the body color gene and the body sculpting gene (show your work). (1 pt).