Question

In: Biology

You are studying mice and two genes that control fur and whisker length. Brown fur is...

You are studying mice and two genes that control fur and whisker length. Brown fur is dominant to grey fur (use B or b for alleles) and long fur is dominant to short fur (use F or f for alleles). You are crossing mice that are heterozygous for both genes. What are the gametes that each mice can produce and what are the genotype and phenotype ratios for the offspring?

Solutions

Expert Solution


Related Solutions

In mice the loci for tail length, fur color and whisker shape are found on the...
In mice the loci for tail length, fur color and whisker shape are found on the same chromosome. Long tails (T) are dominant to short tails (t), brown fur (B) is dominant to white fur (b) and straight whisker (S) are dominant to curled whiskers (s). Mice that were homozygous dominant for all three characters were crossed with mice homozygous recessive for all three characters and all of the offspring had long tails, brown fur and straight whiskers. These F1...
In rabbits, black fur (B) is dominant over brown fur (b). Normal length fur is determined...
In rabbits, black fur (B) is dominant over brown fur (b). Normal length fur is determined by a dominant gene (R) and a short “rex” by the recessive allele (r). Draw a cross between a homozygous black with homozygous normal length fur and a brown rex rabbit. Do a cross of the F1 generation to determine the phenotypes and genotypes of the F2 generation.
You are studying recessive mutations of three autosomal, linked genes in guinea pigs: fur color (y,...
You are studying recessive mutations of three autosomal, linked genes in guinea pigs: fur color (y, yellow); fur texture (wv, wavy); ear size (l, large). The data in columns A and B was obtained from crosses of heterozygous F1 females with homozygous testcross males (recessive for all three traits). Column: A             B                      C                     D                        E F2 Phenotype # Observed Corresponding Genotype P or SCO or DCO Genotype Written in Correct Order on Homologs yellow 310 ywv+l+ P...
You are studying a population of geese in which there are two color phases, brown and...
You are studying a population of geese in which there are two color phases, brown and gray. Color in this species is controlled by a single gene, with brown dominant to gray. A random sample of 500 geese shows that 45 are gray. What percentage of the brown geese are heterozygous?
You are studying the part of the brain that mediates stress. You have treated some mice...
You are studying the part of the brain that mediates stress. You have treated some mice under stressed conditions and you also have control mice. You isolate the appropriate brain regions from both groups. Describe what you would do to identify changes in genes associated with acetylated lysine 9 on histone H3. What would you do to prepare the brain samples for analysis? Would technique would you use to purify genes associated with aceylated lysine 9 histone H3 and how...
You are studying the inheritance of three genes in the scorpion fly Panorpa communis. You have...
You are studying the inheritance of three genes in the scorpion fly Panorpa communis. You have identified three different autosomal recessive traits, lavender eyes, green body and pointed wings. These phenotypes are caused by alleles in thee different genes, x, y, and z respectively. Wild type flies have red eyes, brown body, and straight wings (x+, y+ and z+). You cross two different pure breeding and obtain a wild-type F1. You then cross the F1 to a true-breeding line that...
10] You are studying the inheritance of three genes in the scorpion fly Panorpa communis. You...
10] You are studying the inheritance of three genes in the scorpion fly Panorpa communis. You have identified three different autosomal recessive traits, lavender eyes, green body and pointed wings. These phenotypes are caused by alleles in thee different genes, x, y, and z respectively. Wild type flies have red eyes, brown body, and straight wings (x+, y+ and z+). You cross two different pure breeding and obtain a wild-type F1. You then cross the F1 to a true-breeding line...
Genetics: A geneticist is studying two genes. Each gene can be either dominant or recessive. A...
Genetics: A geneticist is studying two genes. Each gene can be either dominant or recessive. A sample of 100 individuals is categorized as follows. Write your answer as a fraction or a decimal, rounded to four decimal places. Gene 2 Dominant Recessive Gene 1 Dominant 57 20 Recessive 14 9 Send data to Excel (a) What is the probability that in a randomly sampled individual, gene 1 is dominant? (b) What is the probability that in a randomly sampled individual,...
A geneticist is studying two genes. Each gene can be either dominant or recessive. A sample...
A geneticist is studying two genes. Each gene can be either dominant or recessive. A sample of 100 individuals is categorized as follows. Write your answer as a fraction or a decimal, rounded to four decimal places. Gene 2.   Dominant(gene 2) Recessive(gene 2) Dominant gene1 53 27 recessive gene 1 17 3 Gene 1 (a) What is the probability that in a randomly sampled individual, gene 1 is recessive? (b) What is the probability that in a randomly sampled individual,...
A geneticist is studying two genes. Each gene can be either dominant or recessive. A sample...
A geneticist is studying two genes. Each gene can be either dominant or recessive. A sample of 100 individuals is categorized as follows. Write your answer as a fraction or a decimal, rounded to four decimal places. Gene 2.   Dominant(gene 2) Recessive(gene 2) Dominant gene1 53 27 recessive gene 1 17 3 Gene 1 (a) What is the probability that in a randomly sampled individual, gene 1 is recessive? (b) What is the probability that in a randomly sampled individual,...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT