NEET BIOLOGY

GENETICS AND EVOLUTION

GENETIC BASIS OF INHERITANCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The two alleles for a heritable character separate into different gamete. This is a statement of which Mendelian’s law?
A
Mendel’s first law
B
Mendel’s second law
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -In other words, allele (alternative form of the gene) pairs segregate during the formation of gamete and re-unite randomly during fertilization. This is also known as Mendel’s third law of inheritance.

Detailed explanation-2: -The segregation law is Mendel’s first law. It states that during meiosis alleles segregate. The fundamental principles of this law are posited as follows: There can be more than one type of allele for a gene.

Detailed explanation-3: -Genes come in different versions, or alleles. A dominant allele hides a recessive allele and determines the organism’s appearance. When an organism makes gametes, each gamete receives just one gene copy, which is selected randomly. This is known as the law of segregation.

Detailed explanation-4: -Mendel’s first law describes the segregation of the two copies of alleles of a particular gene into the gametes. Mendel’s second law describes the independent assortment of alleles of different genes from each other during the formation of gametes.

Detailed explanation-5: -The first law of inheritance is the law of dominance. The law states that hybrid offspring will only inherit the dominant characteristics in the phenotype. The alleles that suppress a trait are recessive traits, whereas the alleles that define a trait are known as dominant traits.

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