Answer:
point mutation, change within a gene in which one base pair in the DNA sequence is altered. Point mutations are frequently the result of mistakes made during DNA replication, although modification of DNA, such as through exposure to X-rays or to ultraviolet radiation, also can induce point mutations
It is an abiotic factor.
An abiotic factor is something that will never be alive.
Ex. Dirt, clouds, air.
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Answer:
Spikes are found on some viruses. They are very consistent in structure and can be used for identification.
Explanation:
Viruses have varied structures. A virus particle is composed of DNA or RNA that is inside a protective layer of protein called a capsid. The shape of the capsid can vary from one type of virus to another. The capsid is composed of proteins that are encoded by viral genes within the virus genome.
Answer: the answer is that it used to be a wetter place
Explanation:
<span>In order to determine the sugar molecule associated with the nucleic acid, we must first determine if the nucleic acid is a deoxyribose nucleic acid (DNA) molecule or a ribonucleic acid (RNA) molecule. We can determine this by looking at the bases in the molecule, as DNA has thymine and RNA has uracil. After the type of molecule is determined, the nature of the sugar is given by the name. DNA has deoxyribose and RNA has ribose</span>
