what is the difference between test cross and back cross?
Answer Posted / jyotsna thakur
Back cross is done to know the genotype of parents along
with the progeny but test cross is done to know the
genotype of progeny of F1 generaton.
| Is This Answer Correct ? | 67 Yes | 20 No |
Post New Answer View All Answers
In mice colored coat is dominant to albinism. Sniffles, a male mouse with a colored coat is mated to Esmeralda, an alluring albino. The resulting litter of six young all had colored fur. The next time around Esmeralda was mated with Whiskers, who was the same color as Sniffles; some of this litter were white. a)What are the probable genotypes of Sniffles, Esmeralda, and Whiskers? b) If a male of the 1st litterwas mated to a colored female of the 2nd litter, what phenotypic ratio might be expected among the offspring? c)What would be the expected results if a male of the 1st litter was mated to an albino from the 2nd?
Is Genetic engineering the best of solution?
our hair comes from our mother's father.Is it true or not?
If curly hair is genetic, why do you have curly hair if none of your ancestors did?
How will you differentiate alleles of a gene in the double strand of DNA?
Is Jurassic Park -- Completely impossible?
Explain in terms of gene product function how a mutant allele can be dominant? recessive?
What situations might be viewed as ethical uses of human cloning? Are you doubtful, fearful, or hopeful about human cloning?
What is your personal opinion regarding genetic engineering and human cloning?
Cystic fibrosis (CF) occurs with a frequency of about 1/2500 Caucasian newborns and is inherited as an autosomal recessive. A woman had an older sister die from complications of this disease. CF is not present among relatives of her husband. Both the woman and her husband have normal phenotypes. What is the chance this couple will have a CF child?
Is There any way in which a currently living could be mutated in reality to such a large scale as to which others could see the mutation, such as a third arm?
Flower position, stem length, and seed shape were three traits that were studied by Mendel. Each is controlled by an independently assorting gene. If a plant that is heterozygous for all three traits was allowed to self- fertilize, what proportion of the offspring would be expected to show all three dominant phenotypes?
In the definition of mutation we say sudden heritable change i the DNA, so what does sudden means here?
cancer cells have their dna wound back wards, is that true?
What are the differences between Genetic Engineering and breeding?