<span>Vascular plants are able to grow higher than other plants due to the rigidity of xylem cells, which support the plant.</span>
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: Muscle fibers in bundles or fascicles.
Explanation:
Skeletal striated muscle is involved in dense unshaped connective tissue, the Epimysium. From the epimysium depart fine septa of connective tissue to the muscle, separating the bundles and constituting the perimysium, carrying blood vessels and lymphatics and nerves. Every muscle cell is involved in the basal lamina, reticular fibers and a small amount of connective tissue, which form the endomysium. It anchors muscle fibers between them and contains blood capillaries and axons.
Answer: It is called Parasitism.
Explanation:
Parasitism is symbiotic relationship where an organisms lives in or on it's host thereby feeding and causing harm on it host. Examples of such relationship is parasites like roundworm, ticks, fleas that feed on humans and cause harm.
