A mutation involving a single base change in the DNA sequence is termed a point mutation.
Explanation:
Question 2 isn't fully provided.
3. A mutation influencing just a single nucleotide of nucleic acid is known as a Point Mutation.
In point mutations, one base substitutes for another.
For example: TAT TGG CTA
TAC TGG CTA
This shows that TAT is replaced with TAC, indicating a point mutation.
4. Yes. The point mutation has noticeable effects on the resultant sequence in comparison with the original sequence.
A change in one base in the gene can lead to diseases such as cancer or sickle cell anemia.
Answer:
The elements are hydrogen, oxygen, nitrogen, and carbon.
Explanation:
Together, they constitute more than 99% of the mass in most cells and are the lightest elements able to create one, two, three, and four bonds correspondingly.
Answer:
The correct choice is A............
Choanoflagellates and sponges are sister groups Explanation: Choanoflagellates are tiny unicellular organisms in the kingdom Protista, morphologically akin to the choanocyte cells of sponges, featuring a central flagellum encircled by a collar of microvilli. Consequently, choanoflagellates are often regarded as the closest living relatives of primitive metazoans, thus classifying them as sister groups to sponges. Recent molecular phylogenetic and genomic studies have backed this idea.
