1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MA_775_DIABLO [31]
3 years ago
14

8. In the 1940s, the scientist J.B.S. Haldane linked many human red blood

Biology
1 answer:
nadya68 [22]3 years ago
6 0

Answer:

b. The individual's' genetic composition

Explanation:

Natural selection is an occurrence in nature in which organisms with genes that have mutated to adapt to certain ailments, survive better than their mates. J.B.S Haldane made a hypothesis that this phenomenon of natural selection accounted for why people in Africa had developed resistance to malaria. Their hemoglobin, proteins, and other compounds that are necessary for the function of the red blood cells had been modified so that they would not easily be infiltrated by malaria parasites.

A.C. Allison confirmed this in his experiment which showed that people who had sickle cell mutations in the gene, beta hemoglobin were mostly found in regions where malaria was prevalent. Their genes had also been modified such that they were resistant to malaria.

You might be interested in
What do the letters in each box of of punnett square tell you?
Gnoma [55]
The answer is C: That both parents show characteristics of dominant traits<span />
4 0
3 years ago
Read 2 more answers
The hypothalamus is known to control the activity of the thyroid, which has traditionally been called the master endocrine gland
Dominik [7]

Answer: The statement is true

Explanation:

The hypothalamus is part of the Fore-brain responsible for the secretion of hormones from the pituitary gland.

This pituitary gland situated in the hypothalamus is traditionally called the MASTER ENDOCRINE GLAND, as it influence the activities of all other glands such as thyroid gland.

Thus, the hypothalamus bearing the pituitary gland is said to be in CONTROL of the activity of the thyroid, and ALSO the master endocrine gland.

3 0
3 years ago
Explain how scientific study is always an ongoing process?
Lapatulllka [165]
While scientists have made enormous discoveries, there is always more to learn. Knowledge is built on and reviewed. Sometimes new information reveals an error in understanding from the past. The study of how the world works is always ongoing.
3 0
3 years ago
A researcher mixes M. tuberculosis with and without the rpoB mutation and adds the bacteria to cell cultures. Half the cell cult
kolezko [41]

Answer:

very few M. tuberculosis in the standard nutrient cell cultures carry the rpoB gene mutation, but almost all of the M. tuberculosis in the cell cultures with rifampin carry the rpoB mutation

4 0
3 years ago
True or False: All bacteria that cause an illness like strep throat are genetically identical to each other
Sholpan [36]

Answer:

False

Explanation:

5 0
2 years ago
Other questions:
  • How much energy is stored per energy level
    8·2 answers
  • A student in a biology class crossed a male Drosophila melanogaster having a gray body and long wings with a female D. melanogas
    13·2 answers
  • What is the difference between a species and a population
    6·1 answer
  • Are prokaryotic cells usually longer than eukaryotic cells?
    11·2 answers
  • Part of the cell membrane that transports materials ?
    8·2 answers
  • What cell membrane structure allows water-soluble materials to be passively transported to the cytoplasm
    8·2 answers
  • While mRNA strands are being created a sequence is sometimes miscopied. What will be the effect of this on the cell?
    13·1 answer
  • Index fossils come from types of organisms that lived during only a relatively short period of time, were abundant, and
    14·1 answer
  • What is the scientific name of frog and man?​
    14·1 answer
  • In the stable food chain shown below, what would you expect to happen initially if you were to suddenly double the population of
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!