Question

Assertion (A) : In humans, if gene (B) is responsible for black eyes and gene (b) is responsible for brown eyes, then the colour of eyes of the progeny having gene combination Bb, bb or BB will be black only. Reason (R) : The black colour of the eyes is a dominant trait.

Manisha is an Indian actress. She was born in Delhi to a homemaker mother and an engineer father. She is around 5 feet tall. She has naturally curly hair. She has trained in contemporary and ballet dancing. Which of these is MOST LIKELY to be true about her children?

Before Darwin's theory of evolution, another theory existed that postulated that any physical changes that occurred in an organism through its lifetime could be transmitted to its offspring. Using one example, explain why this theory cannot be true.