EVERYDAY SCIENCE

SCIENCE

GENETIC AND MENDELS LAW OF HEREDITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which one of the following represents a true heterozygous arrangement of genes?
A
TT RR
B
tt rr
C
TT rr
D
Tr Rr
Explanation: 

Detailed explanation-1: -Correct Option-A TtRR Explanation-’Tt’ and ‘Rr’ are the two pairs of heterozygous alleles.

Detailed explanation-2: -Mendel continued his experiments with a pure (homozygous) tall, red flowering pea plant (TTRR) and crossed it with a pure dwarf, white flowering pea plant (ttrr). All the offspring will be hybrid (heterozygous) tall, red flowering (TtRr).

Detailed explanation-3: -So, the correct answer is D “Tt".

Detailed explanation-4: -An allele is one of two or more alternative forms of a gene, and they are found at the same place, or locus, on the chromosome. Heterozygous refers to having different alleles for a particular trait. If the two versions are different, you have a heterozygous genotype for that gene.

There is 1 question to complete.