Describe back cross and test cross 12th students
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Verified answer
[tex]\huge\star\mathfrak\red{{Answer:-}}[/tex]
a. Back cross :
The F1 individuals obtained in
a cross are usually selfed to get the F2progeny.
They can also be crossed with one of the two
parents from which they were derived (either
recessive or dominant). Such a cross is known
as back cross.
b. Test cross :
The cross of F1 hybrid with the
homozygous recessive parent is known as a test
cross. It is used to test whether an individual is
homozygous (pure) or heterozygous(hybrid).
Test cross is easy, simple, repeatable and
predictable
[tex]\rule{200}{2}[/tex]
[tex]<marquee> Thank You </marquee>[/tex]
[tex]\rule{200}{2}[/tex]
Answer:
[tex]\huge\pink{\underline{Hello}}[/tex]
[tex]\huge{\fbox{\fbox{\red{\mathcal{Answer}}}}}[/tex]
Back Cross:-
Backcrossing is a crossing of a hybrid with one of its parents or an individual genetically similar to its parent, in order to achieve offspring with a genetic identity which is closer to that of the parent.
Test cross:-
Test crosses are used to test an individual's genotype by crossing it with an individual of a known genotype. Individuals that show the recessive phenotype are known to have a homozygous recessive genotype. ... The purpose of a test cross is to determine if this individual is homozygous dominant or heterozygous.
[tex]<body bgcolor=lime><marquee><font color=red>[/tex]
♤Mark As Brainliest ♤
♤Follow me♤
♡Thank plz♡