A. dermal tissue inhibits water loss.
Answer:
The main function of the RB protein is to inhibit the transition from the G1 to S phase. Its activity depends on its phosphorylation state: if RB is not phosphorylated (active state), it is bound to the transcription factor E2F, preventing its translocation to the nucleus and the activation of genes necessary for DNA synthesis; and if it is phosphorylated, by cyclin-CDK complexes, E2F is released and cell proliferation occurs.
Explanation:
Retinoblastoma (Rb) was the first tumor suppressor described and, as we know today, mutations in its structure determine a large number of cancers. Structurally, we speak of a large and multifunctional protein; which is organized in different domains. The activity of this protein is regulated, mainly, by phosphorylation at multiple sites described over the years and is involved in control mechanisms of the cell cycle, apoptosis and senescence.
Answer:
Recombinant DNA
Explanation:
Recombinant DNA (or rDNA) is made by combining DNA from two or more sources. In practice, the process often involves combining the DNA of different organisms.
<h2>Answer</h2>
Language acquisition takes place most rapidly during a child’s 1-2 years.
<h2>Explanation</h2>
By six months, babies are able to differentiate between different sounds and their rhythm. They start babbling which is the first sign that they are learning the language.
In between 1 to 2 years (12 - 24 months), A child is able to attach meanings to words. He is able to respond to his parent's . He recognises the difference between nouns and verbs. He tries to mimic words as much as possible. He knows the right order of words in a sentence and he tries to speak words instead of using his gestures. By the end of 2nd year the child begins speaking in complete sentences.