Variations arising during the process of reproduction can be ______.
Inherited
During reproduction, the process of DNA copying generates small differences (variations) among offspring. In sexual reproduction, the shuffling and combining of chromosomes from two parents produces even greater variation. When these variations arise in the germ cells (ova or sperm), they enter the zygote and are passed on to the next generation.
Because such variations are carried in the DNA that offspring receive from their parents, they are said to be inherited. Inherited variations form the raw material on which natural selection acts, driving evolution.
Words such as ‘altered’, ‘reduced’ and ‘modified’ may describe what happens to a variation later, but they do not capture the essential feature that variations produced during reproduction are transmitted from parent to progeny.
Hence, Inherited.
What is the primary mechanism through which sexual reproduction generates genetic diversity in the offspring?
How many contrasting characters were used by Mendel to formulate the laws of inheritance?
Why does the amount of DNA NOT keep doubling during sexual reproduction in animals?
An ornithologist observes that birds in mountainous regions have more robust chest muscles and larger wings compared to those in forests. Which structural adaptation is being demonstrated?
Two siblings from the same parents often look different from each other. Which process mainly causes this difference?
Which statement best describes the primary evolutionary significance of fat storage in a camel's hump?
A researcher is studying how small differences among individuals over generations contribute to the emergence of new life forms. Which process does this scenario illustrate?
A scientist wants to ensure that a human zygote formed in a laboratory dish has the correct number of chromosomes. Number of chromosomes this zygote should have are:
In a hybrid cross of 556 round green and wrinkled yellow seeds, ____ seeds are round and yellow.
The unit of heredity is:
Which one of the following is a nonsense codon in universal code?
Which base of a codon is called wobble base?
How many different kinds of gametes will be produced by a plant having the genotype AABbCC?
Pair of genes that occupy a specific location on a particular chromosome and control the same trait is termed as _________.
Who synthesize the first artificial gene-