Fast twitch muscle fiber
<span>Fast twitch muscle fiber is known to be most powerful and
lowest in endurance and usually
activated when the body is near maximum exertion. They are identified by a quick
contraction time and usually low resistance to fatigue </span>but are used in powerful bursts of movements like
sprinting. however, muscle fibers have the greatest capacity to produce energy via the anaerobic energy system.
Answer: 4
Explanation: The smallest fragments travel the furthest distance through the gel plate because are able to move quickly through the gel.
RrXtXt×RrXTY is representing the cross between the white eyed female and red eyed male.
Option D
<h3><u>Explanation:</u></h3>
The genes that are discussed here both are completely dominant over their recessive alleles. In the autosome, the dominant R gene is responsible for red eye and recessive r gene is responsible for sepia eye. But in allosome, the dominant T gene allows the eye colour to be expressed and the recessive t gene doesn't allow eye colour to be expressed and makes it white.
As the female do have 2 X chromosomes and the female is white eyed, then both the chromosomes of female have t gene.
As the male is red eyed and have one X chromosome, so the male must have atleast one R gene in autosome to make the eye colour red and must have T gene in his X chromosome to make it appear in phenotype.
So the most possible cross that is given here is RrXtXt×RrXTY.
Given the fact that plants went extinct i would say overpopulation of the rabits did that cus if there are less rabits then there are more plants.
Answer :
based on the use of anatomical and genetic evidence to establish ancestral relationships
Explanation :
We know that,
The cladistic approach to primate :
The cladistic approach to primate is defined as phenotypically and anatomical characteristics, genetic and common characteristics that established ancestral relationships.
It is not purely based on phenotypes only, it required genetic and anatomic behaviour and evidences.
Hence, The correct answer is option (III)