what is the difference between back cross and test cross?

Answer Posted / neha katiyar

back cross-cross between any of the f1 generation offspring with any one of the two parents either the recessive or the dominant

test cross- cross that is being done between the f1 generation offspring with the recessive parent
This cross is being performed to confirm or check the genotype of f1 generation individual taken as sample for cross

Is This Answer Correct ?    12 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Is Genetic Engineering worth the cost and effort?

2248


Different between back cross and test cross

927


what is DIY Gene testing ?

1661


In cucumbers normal leaves (N) are dominant to curled leaves (n) and elongated fruit (L) is dominant to spherical fruit and these genes are linked on the same chromosome. If a pure-breeding normal-leaved, elongated fruit cucumber is crossed with a curled-leaved, spherical fruit cucumber, what will be the phenotype of the F1? the phenotypic ratio of the F2?

1774


How to construct Genetic Code?

1625






Promoters of housekeeping genes contain variable numbers of GC boxes, but neither TATA nor CCAAT boxes.Inwhat way these properties of housekeeping promoters are helpful?

1687


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?

2958


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?

3797


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?

2696


Is biotechnology more dangerous to other gene transfer technologies breeding?

1581


what is the connection between a chromatid and a replicated DNA molecule?

1733


Is Recombination in Human Mitochondrial DNA really possible?

1711


Does unwinding DNA cause aging?

1690


Why does RNA have 5 bases and DNA has only 4?

1819


Has vitamin c been produced in a human naturally before?

1597