Answer:
No, they do not all cause a change in amino acid sequence of a protein.
Explanation:
Substitution mutation is the type of mutation that results when the nucleotide base of a gene is replaced by another base in the sequence. A substitution mutation can result into three different types of mutation namely; silent mutation, missense mutation, and nonsense mutation.
- In silent mutation, the nucleotide base that gets replaced by another still forms a codon that encodes the same amino acid as in the original sequence. e.g if guanine replaces adenine in the sequence, TTA to form a mutated sequence, TTG. This mutated codon (TTG) still encodes LEUCINE amino acid just as TTA does. Hence, there is no effect on the resulting amino acid sequence. This portrays that NOT ALL SUBSTITUTIONS cause a change in amino acid sequence of a protein.
The answer is C.
It is the site of gas exchange in the lungs.
Gas exchange occurs only in alveoli. Alveoli are made of thin-walled parenchymal cells, typically one-cell thick, that look like tiny bubbles within the sacs. Alveoli are in direct contact with capillaries (one-cell thick) of the circulatory system.
Answer:
<em>The process involves sporogenous cells (sporocytes, also called spore mother cells) undergoing cell division to give rise to spores. In meiotic sporogenesis, a diploid spore mother cell within the sporangium undergoes meiosis, producing a tetrad of haploid spores.</em>
<em>At</em><em> </em><em>last</em><em> </em><em>there</em><em> </em><em>are</em><em> </em><em>4</em><em> </em><em>types</em><em> </em><em>of</em><em> </em><em>processes in</em><em> </em><em>spore</em><em> formation</em><em>.</em>
Explanation:
This is correct!
The doctor is higher class, kino's lower class, kino became scared because he had to trust the doctor to sure his son.
Answer:
B
Explanation:
unusually weak magnetic fields on the sun paired with reduced solar activity cause sunspots to disappear.
