In the ABO series of human blood types, people have only one kind of blood type, either A, B, AB, or O. This illustrates what kind of variation?
A. Continuous B. Contingent C. Discontinuous D. Genetic
Answer:
C. Discontinuous
Explanation:
ABO blood type in humans is regulated by three alleles of a gene. various combinations of these three alleles give a total of four types of phenotypes that can be present in a population. When a person has two copies of I^A alleles, its blood type will be type "A". It is an example of discontinuous genetic variation since the phenotypes are present in distinct categories and do not exhibit a range of continuous variations as the skin color does.
Explanation:
The digestive system runs from the mouth, gullet, stomach, liver, pancreas, duodenum/upper small intestine, ileum/ lower small intestine, large intestine, appendix, rectum and anus. However the alimentary canal has all the above features except for the liver and pancreas
Hope it helps! ^^
Answer:
Ernst Heinrich Philipp August Haeckel is a German zoologist, naturalist, philosopher, physician, professor, marine biologist, and artist who discovered, described and named thousands of new species, mapped a genealogical tree relating all life forms, and coined many terms in biology, including ecology, phylum, phylogeny, and Protista.
Explanation:<em>Your welcome:)</em>
So we can easily classify animals and distinguish their relationships
Answer:
Option E, Purple and long
Explanation:
Let the allele for red-flowered plant be "R" and allele for white -flowered plant be "r"
Allele for long radish be "L" and oval radish be "l"
Given -
A cross between a red-flowered plant (RR) and a white-flowered plant (rr)yields all-purple offspring (Rr)
And
Long is a dominant trait
Cross is carried out between true-breeding red long radishes (RRLL) are crossed with true-breeding white oval radishes (rrll)
The gametes for the two parents would b e
RL, RL , RL, RL
rl, rl, rl, rl
Thus, genotype of offspring would be "RrLl"
So all the offspring would be "Purple long"
Hence , option E is correct