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Categories >> Sciences >> Biological Sciences >> Genetics


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what is the difference between back cross and test cross?
 Question Submitted By :: Genetics
I also faced this Question!!     Answer Posted By  
# 1
Test cross is the cross between recessive parent with one of
its progeny.

backcross is the crossing between any of its parents with
These tests are done normally to identify homozygosity among
the breeds.
Is This Answer Correct ?    74 Yes 13 No
# 2
back cross:- it is a cross between f1 individual with one
of its parent genotype.

test cross:-it is a type of back cross between f1
individual and homozygous recessive.
Is This Answer Correct ?    31 Yes 6 No
# 3
Back cross - crossing of hybrid (F1)either of its parents
(dominan / recessive).

AA x aa = Aa x AA / aa

Test Croos - Crossing of F1 with homozygous recessive

AA x aa = Aa x aa
Is This Answer Correct ?    21 Yes 3 No
M. A. Ansari
# 4
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 ?    8 Yes 1 No
Neha Katiyar
# 5
test cross: cross between the progeny and the recessive parent.

back cross: the cross between the progeny and either the
dominant or recessive parent
Is This Answer Correct ?    2 Yes 0 No
David Mbogo
# 6
back cross-in this type of cross,dominent character & no recessive characters appear in the progeny.
test cross-in this type of cross, dominent & recessive characters appear in equal number i.e 1:1 ratio
Is This Answer Correct ?    1 Yes 0 No
Renu Singh

Other Genetics Interview Questions
  Question Asked @ Answers
Suppose a father of blood type B and a mother of blood type O have a child of type O. What are the chances that their next child will be blood type O? Type B? Type A? Type AB?   1
what are introns and exons?   2
A normally pigmented man (dominant) marries an albino woman (recessive). They have 3 children, one of whom is an albino. What is the genotype of the man?   3
What is the difference between Sex-Linked and Sex- Influenced diseases?   1
name the Best plant to practice breading/genetic study?   2
What are our motives in Genetic Engineering? (Humanitarian, improve mankind or national interests)   1
What is stem cell research?   2
People who can roll their tongues contain a dominant allele for tongue rolling. If people do not contain the tongue rolling gene, then they cannot roll their tongue no matter how hard they try. Consider the following situation: If a homozygous dominant tongue roller mates with a homozygous recessive non-tongue roller, then what is the probability of the offspring inheriting the tongue rolling gene?   2
Can DNA survive to intense heat?   2
In horses, B = black, b = brown, T = trotter, t = pacer. A black pacer mated to a brown trotter produces a black trotter offspring year after year. What are the probable genotypes?   1
What is the difference betwee bacteriostatic and bacteriocidal?   2
what are splice junction mutations?   1
For more Genetics Interview Questions Click Here 

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