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Lerok [7]
1 year ago
10

Dhruv, a 65-year-old retiree, is brought to the hospital after developing chest pain while gardening. He is quickly diagnosed wi

th a
Medicine
1 answer:
Nikitich [7]1 year ago
3 0

Answer:

copd

Explanation:

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What is nondisjunction? ______________ When does it happen? _______________ What is the result? __________ Name some examples __
BARSIC [14]

Answer:

The process of reproduction is a pretty complex one, and there are several steps that are taken that, if taken wrong, can lead to abnormalities. The most important thing to know is that all humans have two sets of 23 chromosomes, one from each of their parents. The correct process of egg and sperm formation is meiosis, and it will ensure that from the originating cell, the gametes (or eggs) formed, will have the total amount of chromosomes needed.

During this process of meiosis, the chromosomes should be separated and evenly divided. But first, DNA replication must take place. This means that first two homologous chromosomes, and are created so that all new cells will have the same DNA information. This happens in Meiosis I, Anaphase I. On the second phase of meiosis, in its anaphase (meiosis II, anaphase II) a new division will happen, but this time, of sister chromatids. This separation process is called disjunction.

So, in answer to the question above, we have that:

1. Non-disjunction: is when the two pairs of homologous chromosomes (in meiosis I, anaphase I), or the two sister chromatids (in meiosis II, anaphase II), do not separate, or parts remain with the other.

2. This happens during two phases of Meiosis: Meiosis I, anaphase I and Meiosis II, anaphase II.

3. The result can be two cells with extra copies of chromosomes, and the other missing that extra pair of chromosomes and in the case of nondisjunction in anaphase II, the results can be: two normal haploid cells, and the other two will, one have an extra chromosome, and the other, be totally missing it.

4. Some examples of these situations, when female and male gametes unite to form a baby, would be: Trisomies (extra copies of chromosomes) and Monosomies (absent normal numbers of chromosomes).

5 0
3 years ago
Trace the path of a red blood cell from the renal artery to the glomerulus:
Lunna [17]
The answer is C. 1,3,2,4
7 0
3 years ago
In a routine examination, some blood is taken and analyzed. The results show a high IgM titer for the mumps virus but a low IgG
blsea [12.9K]

In a routine examination, some blood is taken and analyzed. The results show a high IgM titer for the mumps virus but a low IgG anti-mumps titer. This would indicate the person was recently infected with mumps.

This is the most common antibody. It is in the blood and other body fluids and protects against bacterial and viral infections. It may take time for IgG to form after infection or immunization. The presence of detectable IgG class antibodies indicates previous exposure to mumps virus through infection or immunization. Individuals who test positive are considered immune to the mumps virus.  People with a history of mumps vaccination may not have detectable mumps IgM antibodies regardless of the timing of sample collection. IgG test results are usually positive and elevated at the initial blood draw.

Learn more about IgG class antibodies on:

brainly.com/question/14081504

#SPJ4

3 0
1 year ago
Formas de expresar dolor
klio [65]

Answer:

me duele

Explanation:

5 0
3 years ago
Who has more inner struggles? Male or female
NNADVOKAT [17]

Answer:

males

Explanation:

6 0
3 years ago
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