Regular human body cells or somatic cells have a total of 46 chromosomes. Therefore, because of meiosis, sperm cells, which are gametes or sex cells must contain 1/2 of the number of total chromosomes found within a somatic cell, to make sure that the chromosome number within an organism is maintained, this would be 23 in this case.
messenger RNA (mRNA) carries a transcript (copy) of the DNA's instructions out of the nucleus to the cytoplasm where it attaches to a ribosome.
transfer RNA (tRNA) begins to read (translate) the information on the attached mRNA and corresponding to this information, fetches the appropriate amino acids from the pool of free amino acids in the cytoplasm, and brings them to the ribosome where they are linked into a chain or polymer forming the primary structure of the desired protein.
During the process of exocytosis, the cell membrane extends to engulf substances that are too big to pass through the cell membrane. Receptor proteins bind to signal molecules outside the cell.
<u>Answer</u>:
"phosphate, ribose, adenine" could be a DNA nucleotide
<u>Explanation</u>:
They are built up of the molecules known as nucleotide. Every nucleotide has a sugar group ,a nitrogen base and a phosphate group in it. For such type of nitrogen are present. The order of bases are determined by the genetic code or the instruction they are carrying with them. The DNA are generally found in the nucleus present in the brain. It has the total control of the body. It also keeps a record of the genetic information.
The functions of carbohydrates include: A, B, and D.
<h3>Functions of Carbohydrates</h3>
- The primary function of carbohydrate is, it serves as energy source for the body.
- Also, carbohydrates form part of the essential structural components of organism and is needed for building macromolecules.
- Carbohydrates are also part of the structure of nucleic acids which serve as storage for hereditary information.
Therefore, the functions of carbohydrates include: A, B, and D.
Learn more about carbohydrates on:
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