Answer: Point mutation is easily reversible, thus non-lethal
Explanation:
Point mutation is caused by exchange of a single nucleotide for another. These change is called
1) Transition (when a purine base substitute another purine base, or pyrimidine bases substitute each other)
2) Transversion (when a purine base substitute a pyrimidine base).
However, note that a point mutation can be easily reversed by another point mutation; so, the claim that a nucleotide difference in the Hsr12 gene caused the human disease is inaccurate
Answer: Pteridophyte
You classify the plant as a pteridophyte
Explanation:
Pteridophytes are known to have the following:
- many cells (multicellular) and vascular bundles
- true roots, stems, and leaves
- do not produce flower throughout their lifespan
- they are mainly terrestrial plants, while few are aquatic
- do not produce seeds but reproduce asexually by formation of spores
Examples are ferns
Answer:
Option B
Explanation:
The series of events mentioned in this description are as follows -
a) In 1850, ash layer deposits over the layer of red clay
b) In 1902, layer of silt from tsunami covers the ash
Now pot is found in between ash and red clay layer
While coin is found in between ash and silt.
Thus, it is clear that pot was first buried between the ash and red clay layer. While coin was buried in 1902 above the ash layer but beneath the silt layer.
Hence, option B is correct
The answer to this question is C. Cornea
Answer:
yes
Explanation:
just that anaphase is letter c
