<span>Large changes in allele frequencies can occur in a short time.
I'm taking the test now and that's what I know.</span>
Answer: The correct answer is -
A. Sense strand of DNA, substituting uracil for thymine.
Explanation:
Transcription is a process of formation of mRNA (messenger RNA) using a DNA template with the help of enzyme RNA polymerase.
In this process, ribonucleotides are added by RNA polymerase in 5' to 3' direction (that is antiparallel to the direction of template DNA) in a complementary manner.
For Adenine, uracil is added and for Cytosine, Guanine is added in mRNA. This produces the mRNA transcript matching the sense strand of DNA (that is complementary to antisense or template DNA).
Thus, option A) is the right answer.
<h2>Correct answer is option "a"</h2>
Explanation:
- Succession is a directional non-regular total change in the sorts of plant species that involve a given region through time. It includes the procedures of colonization, foundation, and annihilation which follow up on the taking an interest plant species.
- Most successions contains various stages that can be perceived by the assortment of species that overwhelm by then in the succession start when a zone is made in part or totally without vegetation due to an unsettling influence.
- Some basic instruments of unsettling influence are fires, wind storms, volcanic emissions, logging, environmental change, extreme flooding, sickness, and irritation. Succession stops when species organization changes never again happen with time, and this community is said to be a peak network.
- So, the correct answer is option a "primary succession"
Answer:
B. Dehydration
Explanation:
Addition reaction is defined as the chemical reaction in which two different compunds combine together to form a new compund.
Dehydration reaction is defined as the chemical reaction in which water molecule (H2O) is removed from the reactant.
For example: RCO2H + R′OH ⇌ RCO2R′ + H2O
In the given equation: CH3OH + HOCH3 = CH3-O-CH3 + HOH
The reaction is showing dehydration because two molcules are combined aand water molecule is eliminated from the reactant.
Hence, the correct option is B. Dehydration.
<span>they affect the rate of cycling</span>
