Any occurence of extra chromosones is due to genetic mutation/disorders.
Answer: The correct answer for the fill in the blank is D) Nucleus, ribosomes.
In all eukaryotic cells, the process of transcription (formation of mRNA from DNA) takes place in the nucleus. mRNA (messenger RNA) is then transported to cytoplasm where it is translated to form proteins at the site called ribosomes.
Ribosome is a specialised membrane bound organelle that is responsible for assembly of proteins.
Thus, option D) Nucleus, ribosomes is the right answer.
The T helper cells activate B-cells.
Correct answer choice is :
<h2>C) Children of congressional leaders.</h2><h2 /><h2>Explanation:</h2><h2 />
The leader of the party that owns a majority of seats in either house of Congress or of a state legislature. Elected by their own party councils, majority leaders act as chief spokespersons and tacticians for their parties. The principal functions of a majority leader normally associate to floor duties. The majority leader is the lead speaker for the majority party during floor discussions, exhibits the calendar and supports the president or speaker with program advancement, policy formation, and policy decisions.
Answer:
Contact inhibition is a process of arresting cell growth when cells come in contact with each other. As a result, normal cells stop proliferating when they form a monolayer in a culture dish. Contact inhibition is a powerful anticancer mechanism that is lost in cancer cells (16).
Explanation: