Advertisements
Advertisements
Question
In case of sexual reproduction, newborn show similarities about characters. Explain this statement with suitable examples.
Advertisements
Solution
In sexual reproduction, the offspring inherits genetic material from both parents. Therefore, the newborn shows similarities in various characteristics with its parents. These inherited characteristics are transmitted through genes present on chromosomes.
For example:
- A child may have the same eye colour, hair colour, or blood group as one or both parents.
- The shape of the nose, facial features, height, and other physical traits may also resemble those of the parents.
However, due to the combination and recombination of genes from both parents, the offspring is not exactly identical to either parent and shows some variations.
APPEARS IN
RELATED QUESTIONS
The following is the illustration of the sequence of ovarian events (a − i) in a human female
(i) Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
(ii) Name the ovarian hormone and the pituitary hormone that have caused the above mentioned event.
(iii) Explain the changes that occur in the uterus simultaneously in anticipation.
(iv) Write the difference between ‘c’ and ‘h’.
(v) Draw a labeled sketch of the structure of a human ovum prior to fertilization.
Male and female gametes are ______.
What is oogenesis?
Give scientific reason.
There is a menopause when women are 45-50 years old.
The process which the sperm undergoes before penetrating the ovum is ____________.
Expand the acronym.
LH
Expand the acronym.
hCG
Complete the analogy.
1 primary spermatocyte : 4 spermatozoa :: 1 primary oocyte : ____________.
Identify the correct stages (P - S) in the given diagram of spermatogenesis.
Identify the CORRECT sequence of events.
Four primary spermatocytes give rise to ______.
Which of the following events take place during spermatogenesis?
Select the pair of cells which does not divide further by mitosis.
Spermiation is the process of the release of sperm from ______.
How many functional sperms and how many ova will be formed by a primary spermatocyte and a primary oocyte.
A reaction of granules content which harden the zona pellucida and ensures sure block to polyspermy is ______.
Which of the following is a primary sex organ of female?
Which of the following are called dual gland?
After the release of the secondary oocyte, the Graafian follicle develops into ______.
Complete the analogy with respect to the structure of sperm.
Nebenkern : ‘X’ : : Acrosome is formed from : ‘Y’
