Because tall is a dominant trait and short is a recessive trait, when a tall pea plant crosses with a short pea plant, the progeny is always tall. Therefore, the progeny exhibit the dominant trait.
Heredity is the transfer of characters (or trails) from one generation to another.
A gene is a piece of DNA located on a chromosome that controls the synthesis of a certain protein that controls a particular trait or characteristic of an organism.
The information needed to make proteins is found in the deoxyribonucleic acid (DNA) found in the chromosomes of the cell nucleus.
According to the Mendelian experiment, violet colour (VV) is a dominant trait while white colour (vv) is a recessive trait. Hence, the colour of the flower in F1 progeny will be violet (Vv).
(a) Both (A) and (R) are true and (R) is the correct explanation of the assertion (A).
Variations are structural, functional, or behavioural variations from the established norms in living things. Variations that are inherited take a role in evolution. Darwin proposed that individuals with advantageous variants are weeded out by natural selection. Such an organism will endure, multiply more, and create more offspring. As a result, valuable variants develop throughout nature.
In the environment they live in, not all varieties have an equal chance of surviving. Different people might benefit in different ways depending on the types of variations. The organisms that are best suited to their environment will survive.
It is true that only differences provide individuals of organisms a chance to live in a group. For instance, if bacteria find themselves in a situation where the ambient temperature suddenly rises, changes that boost their heat resistance can be quite helpful for survival. This will determine whether the bacteria survives or perishes.
By inheriting an equal number of chromosomes from both parents, kids are guaranteed to have genetic contributions from both male and female parents. Chromosomes come in 23 pairs, however not all of them are coupled. The 22 pairings are known as autosomes, while the final pair, which consists of one pair, is known as the …
How is the equal genetic contribution of male and female parents ensured in the progeny? Read More »
