When the gametes join they form a cell<span> called a zygote. </span>Human<span> sperm and eggs</span>contain<span> 23 </span>chromosomes<span>. </span>Human<span> zygotes </span>contain 46 chromosomes. The type ofcell<span> division that produces gametes with half the normal </span>chromosome<span> number is called </span>meiosis<span>.
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I'd say option B. Vitamin D and Calcium are needed to have strong bones, so it'd be most logical for this to be the answer.
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Answer & Explanation:
After a complimentary DNA chain is generated as messenger RNA (mRNA), Sequence of nuclotides in a mRNA directs the addition of a specific sequence of amino acids to form the protein. This usually occur on ribosome.
The polypeptide chain now increases in length by covalent attachment of successive amino acids units, each carried to the ribosome and correctly positioned by its transfer RNA (tRNA). The completion of the polypeptide chain is signalled by a termination codon present in the mRNA.
Answer:
Carbon is able to bond to many other atoms to form large and complex molecules
Explanation:
Carbon is able to bond with many other atoms to form large and complex molecules such as carbohydrates, proteins, nucleic acids and lipids. Carbon atom mostly makes covalent bond instead of ionic bond with other atom due to the presence of four electrons in its outermost shell. Due to formation of covalent bond, carbon atom attaches to large number of atoms forming a large molecule.