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ki77a [65]
3 years ago
13

1 ) HIV weakens the immune system by killing a. antibodies. c. helper T cells. b. B cells. d. killer T cells.

Biology
1 answer:
kondaur [170]3 years ago
5 0
1.)<span>a. antibodies
 2.)</span><span>b. its mechanism is well understood</span>
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You are dealing with a problem in which the male parent has a genotype of DDmm, while the female parent has DdMm. After doing th
erastova [34]

The sets of alleles for each parent are Dm for the mother and DM, Dm, dM, and dm for the father. This information is fundamental for estimating genotype and allele frequencies in offspring.

<h3>What are alleles?</h3>

Alleles are gene variants for a given gene <em>locus</em>, diploid organisms inherit two alleles for each locus (one from each parent).

Gametes are germinal (haploid) cells that carry specific allele combinations.

The analysis of gamete combinations is fundamental to estimate genotypes and allele frequencies.

Learn more about alleles here:

brainly.com/question/3452155

6 0
2 years ago
BRAINLY IF CORRECT!!!! When a fan is moving is convection, conduction, or raditation, and WHY?
Radda [10]

Answer:

<em>Moving</em><em> </em><em>of</em><em> </em><em>fan</em><em> </em><em>is</em><em> </em><em>convection</em><em>.</em>

<em>The faster moving air from the fan displaces the warmer air that is in direct contact with our skin. This enhances the rate of convective heat transfer, which means we feel cooler.</em>

4 0
3 years ago
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Frozen red blood cells that have been thawed, deglycerolized and reconstituted in an open system must be used within _______.
horsena [70]

Frozen red blood cells that have been thawed, deglycerolized and reconstituted in an open system must be used within 24 hours.

Cryopreservation of Red blood cells (RBCs) can be done with a long time span of usability of 10 years. Glycerol safeguards RBCs during freezing and defrosting, yet it can cause hemolysis if it is not washed off or eliminated before transfusion. When a unit has been deglycerolized, the shelf life of RBCs in an open system is only 24 hours, bringing about sporadic utilization of Frozen RBCs from the outset of the procedure or in close system cases it is up to 14 days.

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6 0
2 years ago
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The risk of schizophrenia among biological relatives is greatest for identical twins.
Kobotan [32]

The risk of schizophrenia among biological relatives is greatest for identical twins. This is a true statement.

<h3>What is schizophrenia?</h3>

Schizophrenia is a neurological disorder that causes an affected individual to lose touch of reality.

Schizophrenia can be caused by the following:

  • Genetics: Gene defects caused by mutation such as deletions or duplications of genetic material increases risk of schizophrenia.

  • Environment: Urbanicity, migration, cannabis, childhood traumas, infectious agents, obstetrical complications and psychosocial factors

  • Brain chemistry and circuit

  • Brain abnormalities: Impaired communication between brain regions leads to the associated symptoms and cognitive changes.

According to research, the risk of schizophrenia among biological relatives is greatest for identical twins because they are genetically identical.

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7 0
2 years ago
It has been found that b-dicarbonyl compounds have a greater concentration of the enol form over the keto form. this can be expl
coldgirl [10]
It is found that more than beta dicarbonyl compounds have more than 75 % concentration in Enol form and remaining in Keto form.

Reason:
             This excess of Enol form can be explained due to extra stability of this isomer. It is found that the enol form is being stabilized by the interamolecular interactions i.e. Hydrogen bonding between the hydroxyl group (acting as Hydrogen Bond Donor) and Carbonyl Oxygen (Hydrogen Bond Acceptor).

3 0
3 years ago
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