Answer:
1) A, C and D
2) D
Explanation:
The normal hemoglobin is made up of heme and globin. The protein, globin is in turn made up of four polypeptide chains which include two alpha and two beta chains.
The gene gene responsible for the creation of the beta globin chain is located on the short arm of chromosome eleven. It is called the HBB gene. Many mutations occur on the HBB gene and a mutation on this gene produces abnormal hemoglobin like HBS, hbc, and hbe. HBs causes sickle cell anemia.
In sickle cell anemia, there is an alteration of the genetic code, leading to the substitution of a single amino acid where glutamic acid is replaced by valine in the sixth position of the beta chain.
In the mRNA, the change converts a glutamic acid codon(GAG or GAA) to a valine codon(GUA, GUC, GUU or GUG).
Sickle cell anemia is caused by a transversion that leads to a missense mutation.
Answer:
The volcanic activity led to the release of large amounts of carbon dioxide at the end of the Devonian period
Explanation:
Devonian period is refereed as the Age of fish. It is also called an era of mass Extinction. During the end of Devonian period most of the terrestrial animals were extinct from Earth. Another big feature of Devonian period was massive volcanic activity which contributed to the release of carbon dioxide in the environment.
Answer:
1. They both produce offspring
2. They both grow and restart the cycle
3. they both have something to hold the baby/seeds in until they are no longer with there parent
difference- I put one more just in case
1. humans need both female and male plants sometimes don't
2. one needs sperm the other needs pollen
3. plants have seeds humans have live baby's
Question is as interesting as the animal jackalope.
We ASSUME that incomplete dominance of the number of horns gives rise to 0,1 or 2 horns, where hh=>0, Hh=>1 ("blend" of 0 and 2), and HH=>2 horns.
So if HH crosses with hh, the genotype of the offspring will be Hh, i.e. phenotype Hh=> 1 horn
Answer:
Organelles, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystems, and biosphere are the biological stages of organization of living things, organized from the simplest to the most complex.
Explanation:
