answer.
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
kifflom [539]
2 years ago
8

Compare and contrast the contributions of Neel, Pauling, and Ingram to our understanding of the genetic and molecular basis of s

ickle cell disease (SCD).
Biology
1 answer:
taurus [48]2 years ago
7 0

He demonstrated that SCD and sickle cell trait were due to the presence of abnormal 8-globin polypeptides in red blood cells. He demonstrated that the electrophhoretic mobility of B-globin from patients with SCD was different from that of healthy individuals. He demonstrated that both parents of multiple patients with SCD had low levels of sickled red blood cells. He hypothesized that SCD was a recessive trait and that the parents of patients with SCD would be heterozygous carriers. He demonstrated that the difference between B-globin polypeptides in individuals who were healthy and those with SCD is an amino acid substitution. He performed a peptide fingerprint analysis on B-globin from individuals with 84 84 and 89 88, which identified the segment of B-globin that was changed by the BS mutation. James Neel Linus Pauling Vernon Ingram

hope it helps..

You might be interested in
What are microscopic particles called?
Brums [2.3K]
Microscopic particles are called atoms.
7 0
2 years ago
Read 2 more answers
Ten grams of hamburger were added to 90 ml of sterile buffer.
Mariana [72]

Answer:

5.2 × 10 ⁹ cfus

Explanation:

Using the dilution factors

0.1 ml of the final dilution has 52 colonies

1 ml will have approximately 520 colonies

10 ml of the final sample will have 5200 colonies

at 1 / 100 dilution

1 ml of the sample will have 5200 colonies

100 ml of the sample will have 520000 colonies

1 ml of the 0.1 ml + 9.9 ml has 520000 colonies

10 ml will have   5200000

at the second stage of the dilution

0.1 ml of the slurry had 5200000 colonies

1 ml will have 52000000 colonies

10 ml will have 520000000 colonies

100 ml of the initial sample ( 10 grams + 90 ml ) = 5200000000 colonies =

5.2 × 10 ⁹ cfu

7 0
2 years ago
In a species of salamander, the allele for the spotted trait is recessive to the allele for the solid trait. Suppose that a coas
Levart [38]

Answer:

k

Explanation:

6 0
2 years ago
Explain how the animals and plants of a healthy ecosystem organized organized and interact
aleksklad [387]

Explanation:

because they all need one another to survive. flowers need bees to distribute their pollen. and some animals relly on plants for food. and plants relly on the sun to be healthy

6 0
2 years ago
When Thomas Hunt Morgan crossed his red-eyed F1 generation flies to each other, the F2 generation included both red- and white-e
EastWind [94]

Answer:

Gene is present on the X chromosome.

Explanation:

The two main types of chromosomes are autosomes and sex chromosomes. Autosomes regulates the functioning of the body but do not play role in determining the sex of an individual. The sex chromosomes distinguishes between the male and female.

The linkage of sex chromosomes is present in Drosophila as well. The cross between the F1 generation leads to both the red and white eyed flies because the eye color gene is present on the X chromosome. The males contain only one X chromosome and the presence of recessive gene results in the white color whereas in females both the X chromosomes must contain recessive gene for the white color.  

Thus, the answer is gene involved is on the X chromosome.

8 0
2 years ago
Other questions:
  • Please help me with this.. very URGENT!! please!!
    11·1 answer
  • A person starts to eat a hamburger. As she takes a bite and chews, an enzyme called salivary lipase helps to begin the process o
    8·2 answers
  • Which condition did the factory act of 1819 try to eliminate from Manchester's industries?
    15·1 answer
  • The unequal heating of Earth occurs because at the_____, more solar energy is received than is radiated back to space, and at th
    12·1 answer
  • Examine the food web shown in figure 5-4. What would most likely happen to the organisms in this ecosystem if the algae began to
    13·1 answer
  • You go for a run and breathe heavily for an extended amount of time. How is this affecting your pH levels?
    11·2 answers
  • A mutation that disrupts the ability of an animal cell to add polysaccharide modifications to proteins would most likely cause d
    15·2 answers
  • Predict the most likely observed level of luciferase activity if plasmid pCDγ3-789 is introduced into nonlymphoid cells such as
    13·1 answer
  • You have two true-breeding rose bushes, one with red flowers and one with white flowers. A cross between these two roses yields
    5·1 answer
  • Observable matter makes up about what percentage of the universe?<br> 5%<br> 12%<br> 50%<br> 95%
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!