Biology

“We cannot pass on to our progeny the experiences and qualifications earned during our life time”. Justify the statement giving reason and examples. 

Male has 23 pairs of chromosomes and female has 23 pairs of chromosomes. Then why doesn’t an offspring have 46 pairs of chromosomes which is obtained by the fusion of these two eggs.

With the help of an example explain how  genes control characteristics or trait.

After the death of two insects, one of the insect was buried in hot mud and the other is usually found mud. Which of the two is more likely to be preserved better and why?

Dead remains of two species A and B were buried. Later only A’s body was found to be a fossil but not B’s give reason.

Species A shared ten characteristics with species B, species C share fifteen characteristics with D which of the two pairs share closer relation.

Green and red colored seeds are recessive and dominant trait respectively. Out of F1 and F2 in which generation will the green seed appear, if both parents are not hybrid.

If a trait A exists in 10% of a population of an asexually reproducing species and a trait B ists in 60% of the same population, which trait is likely to have arisen earlier?

With the help of an example explain how genes control characteristics or trait?

What is the effect of DNA copying which is not perfectly accurate on the reproduction process?