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ehidna [41]
3 years ago
10

Chromosome 21 figure D is the result of a process known as________

Biology
1 answer:
Softa [21]3 years ago
8 0

Answer:

Chromosome 21 in figure D is the result of a process known as non-disjunction

Explanation:

Meiosis is the process of cell division that serves to obtain gametes, cells with exactly half the chromosome load of the species. This process involves the equal distribution of chromosomes in each daughter cell.

Non-disjunction is an alteration in the separation of the sister chromatids during meiosis, resulting in a gamete with non-separated sister chromatids, which when joined to a normal gamete can produce an organism with an extra chromosome.

In the karyotype shown in the photo, the non-disjunction in chromosome 21 produces a trisomy, a type of aneuploidy seen in Down syndrome.

Learn more:

Trisomy brainly.com/question/484286

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the element nitrogen has an atomic number of 7 and an atomic mass of 14 how many protons, neutrons and electrons are in a atom o
Nat2105 [25]

Answer: By definition, if  the atomic number  = 7 , then there are 7 protons, 7 electrons, and 8 neutrons!

Explanation:

The atomic number is by definition the number of protons, positively charged particles, contained within the atomic nucleus. So if there are 7 protons, there MUST be 7 electrons, 7 negatively charged particles. Why? Because matter is electrically neutral, and positive and negative particles must be equal.

Electrons have negligible mass; the mass number depends on the number of protons contained within the nucleus, PLUS the number of neutrons. Given that we have  15  N , there must be 8 neutrons contained within the nucleus.  does this help?

3 0
3 years ago
What is Osmosis?........
jeka57 [31]
It is a part of the cell cycle.
4 0
3 years ago
Read 2 more answers
What is the product of meiosis I?
Valentin [98]

Answer:

Meiosis I, a reductional division of two haploid cells produces offspring cells that are not genetically identical with the event of recombination. Haploid girl cells have half the original/parent cell chromosomes.

Explanation:

meiosis II, an equational or mitotic division, divides the haploid cells created in meiosis I to produce four identical daughter cells that ultimately form the male/female gametes (egg/sperm).

Here chromatids split in contrast to meiosis I when homologous chromosomes apart.

8 0
3 years ago
Describe the process of biomagnification in 3-5 complete sentence
sasho [114]

Answer:

Biomagnification stands for Biological Magnification, which means the increase of contaminated substances or toxic chemicals that take place in the food chains. These substances often arise from intoxicated or contaminated environments. The contaminants include heavy metals namely mercury, arsenic, pesticides, and polychlorinated biphenyls  compounds which are then taken up by organisms because of the food they consume or the intoxication of their environment.

Explanation:

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3 0
3 years ago
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insens350 [35]

Answer:

The plastic spoon type beak worked the best with the sunflower seeds. This means that a bird with a spoon type beak will survive the best with a food source like the seeds and then can continue to reproduce through life. The charts show which types of beaks have a better chance of survival based off the food options in the environment.

Explanation:

hope this helps mark me please

6 0
3 years ago
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