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
My name is Ann [436]
4 years ago
9

How is an hiv infection different from a cold virus infection?

Biology
2 answers:
Andrew [12]4 years ago
8 0

 HIV attacks helper T cells.

natka813 [3]4 years ago
4 0
HIV directly attacks CD4 helper lymphocytes directly. (D)
You might be interested in
An AAbb strain is crossed to an aaBB strain and the resulting progeny self-crossed. If A andB are located 10 cM apart from each
skelet666 [1.2K]

Answer:

20.3%

Explanation:

Given that:

An AAbb strain is crossed to an aaBB strain

i.e.

                   AAbb      ×      aaBB

gametes       Ab                   aB

For F₁

generation;  

If the resulting progeny are now self-crossed.

We know that the genetic distance between these two genes on the same chromosome is said to be 10 cM.

i.e. the recombinant gene = 10%; Hence, the parental gene will be (100 - 10)% = 90%

Ab ×   aB  =   Aa    AB      ab     Bb

From above; the parental gene;

Ab and   aB = 90% with each being 45%

i.e. Ab = 45%   and aB = 45%

while the recombinants genes are:

AB and ab = 10%

i.e. AB = 5%  and ab = 5%

Finally; the percentage of aaBB is = aB% ×  aB% × 100%

the percentage of aaBB is = 0.45 × 0.45 × 100%

the percentage of aaBB is = 20.25%  ≅ 20.3%

8 0
3 years ago
The rate of firing of the postsynaptic neuron depends on the amount of _____ input it receives from the presynaptic neuron.​
jonny [76]
<span>both excitation and inhibition</span>
8 0
4 years ago
A similarity between mitosis and meiosis is that each start with a cell that has:
Oduvanchick [21]

Answer:

46

Explanation:

in mitosis it doubles to 92

6 0
2 years ago
A nurse is providing an in-service presentation to a group of new pediatric nurses and reviewing differences in assessment of ch
algol [13]
The characteristic that the nurse will describe is HIGHER PITCHED. 
When it comes to heart beating in children and adults, one major difference between the two is that, the heart sound typically auscultated in children has higher pitch than that of the adults.
8 0
3 years ago
How does the heart pump blood from the right ventricle to the lungs and the left ventricle to the rest of the body? (mention the
netineya [11]
The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.
4 0
3 years ago
Other questions:
  • "what percentage of primary energy is used for transportation in developing countries"
    9·1 answer
  • When the alleles in a pair interact and the resulting phenotype reveals the influence of one allele more than that of the other
    12·1 answer
  • Review
    5·1 answer
  • Discuss some careers associated with the muscular ,skeletal,cardiovascular and integumentary system.which career interests the m
    11·1 answer
  • External respiration takes place in the _____.
    11·1 answer
  • What gives wind its mass?
    9·1 answer
  • Choose all the answers that apply.
    11·2 answers
  • Which type of energy do the compounds in the food we eat contain?
    8·1 answer
  • Which statement best describes these cells?
    7·1 answer
  • since cells are filled with water, what would happen to biologically important molecules if they were held together with ionic b
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!