Unsaturated
fats have at least one double bond as a part of their structure. These bonds
are generally in the cis-conformation in naturally occurring fats.
<span>
In
the cis conformation, H atoms are on the same side of the double bond, whereas
in the trans conformation, they are on opposite sides of the double bond.</span>
The statement "The correct way to calculate population size is by dividing the total population by the land area." is true. The correct option is A.
<h3>What is the population?</h3>
The entire number of species in a given area makes up the population. Surveys of various places are conducted to determine the population. By dividing the total population by the fraction of each individual, the population size can be determined.
There are various techniques for population counting. Cohort analysis, aerial counts, etc., are some of these techniques.
Thus, the statement is true. The correct option is A.
To learn more about population size, refer to the link:
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Answer:
A frameshift changes every codon past it. A base substitution only changes one codon.
Explanation:
DNA is comprised of nucleotides (A, C, T, G) that make up amino acids. Every three bases is called a codon and represents an amino acid.
In a frameshift mutation, a nucleotide is either added or deleted from the sequence. This offsets the entire sequence after it because the reading frame shifts. Here's an example:
ACTGCTATCGTCATC
If another T is added in between the first and second codons, then every codon after will be changed.
ACT>T<GCTATCGTCATC
A substitution mutation is usually less severe, as it only alters one codon in the sequence. These occur when one nucleotide is replaced by another one. Here's an example:
ACTGCTATCGTCATC
Let's say the first G is replaced by a T.
ACT>T<CTATCGTCATC
As you can see, none of the other codons changed.
Typically, a frameshift mutation is considered worse than a substitution mutation.
Answer:
d) sedimentary, metamorphic and igneous
