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dem82 [27]
4 years ago
8

What is the difference between normal and sickle hemoglobin at the DNA, RNA, and protein (amino acid) level?

Biology
1 answer:
BaLLatris [955]4 years ago
4 0
<span> DNA sickle hemoglobin is a result of a point mutaion in one base rna changes from gag to gug protein amino acid level changes amino acid from glu to val. </span>
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Label the brain parts<br><br> Please help me with this assignment
Anastaziya [24]

Answer:

A = parietal labe | B = gyrus of the cerebrum | C = corpus callosum | D = frontal lobe

E = thalamus | F = hypothalamus | G = pituitary gland | H = midbrain

J = pons | K = medulla oblongata | L = cerebellum | M = transverse fissure | N = occipital lobe

 

Explanation:

hope this helppss

6 0
3 years ago
HIV can remain latent for several years and not cause any symptoms in its host. What viral reproduction cycle is occurring durin
lakkis [162]

Answer:

The lytic cycle.

Explanation:

<u>HIV is a retrovirus</u> that has a special enzyme called transcriptase reverse, which can synthesize DNA using RNA as a template. This replication system is particularly useful for the virus because the DNA synthesized from the RNA viral genome can be then integrated into the human chromosomes and stay inactive for years. This is called a lysogenic cycle and is characterized by a latency of the virus and an integration to the host DNA.

When there is a triggering event, <u>this latent virus can be excised from the human chromosome and start producing copies of itself using the host machinery.</u> <u>Then the virions are assembled and after that they lyse the host cell and release new infective units that can then infect neighboring cells. </u>This is called the lytic cycle of the virus and is the reproduction cycle that occurs when a person moves into the acquired immunodeficiency syndrome (AIDS) stage of HIV infection.

6 0
3 years ago
How did doctors harvest and culture cells from henrietta lacks?
Assoli18 [71]
Cells were taken while she was being treated for cancer many years ago and these cells have been cultured in the lab ever since.
3 0
4 years ago
Based on his job duties, what kind of support services professional is Timothy? What type of skills are critical to Timothy's wo
Travka [436]

Answer:

1C: head of security

2A: interpersonal

Explanation:

Timothy is the head of security and its job requires him to work with law enforcement  personnel if a security threat situation arises. Interpersonal skills are the type of skills are critical to Timothy's work. Interpersonal is relating to relationships or communication between people and we can say that this skill is important for the head of security to do his job efficiently and in a good manner.

5 0
3 years ago
Stem cells have the ability to divide through what
sdas [7]

Embryonic stem cells. These stem cells come from embryos that are three to five days old. At this stage, an embryo is called a blastocyst and has about 150 cells. These are pluripotent (ploo-RIP-uh-tunt) stem cells, meaning they can divide into more stem cells or can become any type of cell in the body.

5 0
3 years ago
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