I am studying a pair of genes, A and B, that I think are both located on the same chromosome.  After counting offspring from a test cross of an AaBb individual, I notice that recombination frequency for genes A and B is very low (~4%).  From this, I can conclude that Select one: a. A and B are sex-linked b. A and B are actually on different chromosomes c. A and B are very close together on the same chromosome  d. A and B on the same chromosome, but far apart

A cross is made in tomatoes between a female plant thatis trisomic for chromosome 6 and a normal diploid maleplant that is homozygous for the recessive allele for potato leaf (p/p). A trisomic F1 plant is backcrossed to thepotato-leaved male.a. What is the ratio of normal-leaved plants to potatoleaved plants when you assume that p is located onchromosome 6?b. What is the ratio of normal-leaved to potato-leavedplants when you assume that p is not located onchromosome 6?

CC DD and cc dd individuals were crossed to eachother, and the F1 generation was backcrossed to thecc dd parent. 997 Cc Dd, 999 cc dd, 1 Cc dd, and 3 ccDd offspring resulted.a. How far apart are the c and d loci?b. What progeny and in what frequencies would youexpect to result from testcrossing the F1 generationfrom a CC dd × cc DD cross to cc dd?c. In a typical meiosis, how many crossovers occurbetween genes C and D?d. Assume that the C and D loci are on the samechromosome, but the offspring from the testcrossdescribed in part (b) were 498 Cc Dd, 502 cc dd,504 Cc dd, and 496 cc Dd. How would your answer to part (c) change?

How would one explain a testcross involving F1 dihybrid flies in which more parental-type offspring than recombinant-type offspring are produced? Group of answer choices A. The testcross was improperly performed B. The two genes are linked C. Both of the characters are controlled by more than one gene D. The two genes are linked but on different chromosomes E. Recombination did not occur in the cell during meiosis

You breed two monster parents (green, hairless) GGhh and ggHH (white, hairy) to produce F1 offspring (green, hairy). Genes G and H are on the same chromosome.  a. What are the dominant phenotypes?  b. What are ALL of the potential gamete genotypes that could be created by an F1? Clearly indicate the recombinant genotypes.  c. Explain how recombinants are created. d. What are the potential offspring genotypes from the cross of a F1 monster with a homozygous recessive monster.  e. From this test cross you get 152 green, hairless; 23 green, hairy; 148 white, hairy, and 27 white, hairless. Calculate the chi squared to test the independent assortment hypothesis and determine if these genes assort independently.

Alleles A and a are located on a pair of metacentric chromosomes. Alleles B and b are located on a pair of acrocentric chromosomes. A cross is made between individuals having the following genotypes: Aa Bb × aa bb.a. Draw the chromosomes as they would appear in each type of gamete produced by these individuals.b. For each type of progeny resulting from this cross, draw the chromosomes as they would appear in a cell at G1, G2, and metaphase of mitosis.

Suppose researchers studied the first chromosome of a new species and mapped three genes of interest, indicated as a, b, and c. A three‑factor cross was performed and the number of gametes formed from the F2 generation was recorded in a table. Note that the order of genes in the table is arbitrary. Calculate the recombination frequencies for each given gene pair in map units. a+ b+ c+ a b c a b+ c+ a+ b c a b+ c a+ b c+ a b c+ a+ b+ c 173 176 35 33 11 10 3 1 After completing the gene mapping, the researchers treated individuals to induce inversions in the chromosomes. After treatment, another three‑factor cross was performed and the number of gametes formed from the F2 generation was recorded in a second table. Note that the order of genes in the table is arbitrary. a+ b+ c+ abc a b+ c+ ?+ b c a b+ c a+ b c+ a b c+ a+ b+ c 188 185 24 26 1 0 49 46 Calculate the recombination frequencies for each given gene pair in map units.

Can you show the cross to know how to get the answers?. And some explanation would be helpful. Please Recombinant

. Male house cats are either black or orange; females areblack, orange, or calico.a. If these coat-color phenotypes are governed by a sexlinked gene, how can these observations be explained?b. Using appropriate symbols, determine the phenotypes expected in the progeny of a cross between anorange female and a black male.c. Half the females produced by a certain kind of matingare calico, and half are black; half the males are orange,and half are black. What colors are the parental malesand females in this kind of mating?d. Another kind of mating produces progeny in thefollowing proportions: one-fourth orange males, onefourth orange females, one-fourth black males, and onefourth calico females. What colors are the parental malesand females in this kind of mating?

how to do question a) only