NEET BIOLOGY

GENETICS AND EVOLUTION

GENETIC BASIS OF INHERITANCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Who was responsible for the laws governing Inheritance of Traits?
A
Albert Einstein
B
Gregor Mendel
C
Charles Darwin
D
Isaac Newton
Explanation: 

Detailed explanation-1: -The law of inheritance was proposed by Gregor Mendel after conducting experiments on pea plants for seven years. Mendel’s laws of inheritance include law of dominance, law of segregation and law of independent assortment.

Detailed explanation-2: -Our modern understanding of how traits may be inherited through generations comes from the principles proposed by Gregor Mendel in 1865.

Detailed explanation-3: -Mendel didn’t know about genes or discover genes, but he did speculate that there were 2 factors for each basic trait and that 1 factor was inherited from each parent. We now know that Mendel’s inheritance factors are genes, or more specifically alleles – different variants of the same gene.

Detailed explanation-4: -In the 19th century, it was commonly believed that an organism’s traits were passed on to offspring in a blend of characteristics ‘donated’ by each parent.

Detailed explanation-5: -Mendel’s law of dominance states that: “When parents with pure, contrasting traits are crossed together, only one form of trait appears in the next generation. The hybrid offsprings will exhibit only the dominant trait in the phenotype.” Law of dominance is known as the first law of inheritance.

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