Explain the mechanism of inheritance used by sexually reproducing organisms to ensure the stability of DNA of the species.
In sexually reproducing organisms, inheritance occurs through the passing of genetic material (DNA) from both parents. DNA from both the father and the mother combines during fertilization, resulting in offspring with a genetic makeup that is a combination of both parents. The process ensures the stability of DNA by maintaining the integrity of genes through generations, with mechanisms such as genetic recombination and mutation correction playing key roles in stabilizing the DNA.
Proteins control the expression of various characters. Explain this statement by taking an example of "tallness" as a characteristic in plants
प्रादेशिक स्तर पर आयोजित होने वाली 100 मीटर की बाधा दौड़ में आपके मित्र को प्रथम स्थान मिला है। उसे बधाई देते हुए लगभग 40 शब्दों में एक संदेश लिखिए।
Select TRUE statements about lymph from the following:
A. Lymph vessels carry lymph through the body and finally open into larger arteries.
B. Lymph contains some amount of plasma, proteins and blood cells.
C. Lymph contains some amount of plasma, proteins and red blood cells.
D. Lymph vessels carry lymph through the body and finally open into larger veins.
The true statements are: