Answer: Option (a) is the correct answer.
Explanation:
A water molecule contains two hydrogen atoms and one oxygen atom. The chemical formula of water is .
Here, hydrogen is electropositive whereas oxygen atom is electronegative in nature. Hence, oxygen atom pulls electrons from hydrogen atom and as a result partial positive charge develops on hydrogen and partial negative charge develops on oxygen atom.
Therefore, molecule of water becomes polar in nature.
Thus, water is considered a polar molecule because it has partial positive and negative charges at each end.
Answer:
Tanning of DNA using UV light at different time (1 minutes, 15 minutes, and 30 minutes)
Explanation:
Independent variable is the variable that was controlled or change and in this case it is the tanning of DNA with UV light at different times and the dependent variable is what is measured or the effect of the change in the independent variable which is DNA damage and the control was the cells that did not receive the treatment.
Answer:
The correct option is a waxy, water proof layer that protect leaves.
Explanation:
Cuticle is prent on leaf surface chemicall mad from cutin. this chemical compound is waxy like, predominant in citrus family and prevent dehydration.
Frameshift mutation affects codons downstream the point of mutation. The previous order of 3 nucleotide- sequences (codons) is consequently changed. This, therefore, changes the protein coded by the mRNA transcribed by the mutated DNA region. Frameshifts are mostly due to insertion or deletion mutations.
<span>All eight possible phenotypes could occur, but a greater proportion of the offspring would have the parental phenotypes.
</span><span>Because all three genes are linked, it is more likely that the parental allele combinations would stay together rather than be recombined through a crossover event. That is why a greater proportion of the offspring would have parental phenotypes. Nevertheless, some crossing over would likely occur, which is why a small proportion of the offspring would have recombinant phenotypes.</span>