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-Dominant- [34]
3 years ago
5

You are observing a sample of cells in the lab to

Biology
2 answers:
serg [7]3 years ago
8 0

Answer:

B. Centromere

Explanation:

SashulF [63]3 years ago
6 0

Answer:

B) Centromere

Explanation:

The spindle fibers attach to the centromeres via the kinetichore.  If they are damaged, the centromeres may not be able to attach to the kinetichore and pull the chromosomes apart.

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What were the common causes and risk factors found between the majority of the skin disorders?
Paladinen [302]
Skin is the first line of defense mechanism of our immune system. It acts as a barrier for pathogenic and opportunistic microorganisms. However, skin itself has a microbiota that does not allow other microorganisms to invade or colonize. Any wound, cut or change in the pH of skin due to environmental conditions or any disease might lead to the entry of the opportunistic microorganisms inside the skin. This leads to several skin disorders such as dermatitis, eczema, cellulitis, warts, etc. Thus, it is extremely important to keep the skin hydrated and healthy to avoid any kind of microbial invasion.
3 0
3 years ago
You compare them to see what is different. Sample 1: ATTACAGTACTGGCA Sample 2: ATTACAATACTGGGCA
shtirl [24]
Answer: A gene mutation.
8 0
3 years ago
Sometimes the microvilli on the epithelial cells lining the proximal tubule are destroyed. What effect would this have?
Aleonysh [2.5K]

Answer:

Reduced reabsorption of salts and nutrients from the proximal tubule.

Explanation:

The proximal convoluted tubules are the site for reabsorption of the largest amount of solute and water from the filtered fluid. It reabsorbs 65% of water, electrolytes such as Na+ and K+, almost 100% of the filtered glucose and amino acids and other electrolytes such as Ca2+, Mg2+, etc.

The simple cuboidal epithelial cells of the proximal convoluted tubule have a prominent brush border of microvilli on their apical surface. These microvilli serve to increase the surface area for reabsorption and secretion. Destruction of these microvilli would reduce the reabsorption of the above-mentioned salts and nutrients from proximal convoluted tubules.

7 0
3 years ago
The portion of the uterus that connects to the vagina is the:
rewona [7]
The fundus is the portion of the uterus that connects to the vagina.
8 0
3 years ago
This bonds to cytosine (C) in DNA.
shtirl [24]

Answer: <u>Guanine </u>

According to Chargaff's rule, the base pairing in the DNA and RNA is fixed. Adenine always pairs with Thymine in DNA and Uracil in RNA. Guanine pairs up with cytosine. This complementary base pairing is universal and constant. That's why amounts are also equal. It means if cytosine is 20% in any DNA sample, then amount of guanine would be 20% as well.

4 0
3 years ago
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