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kvasek [131]
3 years ago
9

Looking through a light microscope at a cell undergoing division, you see that the condensed chromosomes have lined up along the

midline of the cell. The homologous pairs are NOT joined in tetrads. Each chromosome takes its own place in line, independent of its homolog. You are witnessing _____.
Biology
1 answer:
dimulka [17.4K]3 years ago
8 0

Answer:

Mitotic metaphase or metaphase II of meiosis

Explanation:

Metaphase in mitosis and metaphase II of meiosis II include alignment of chromosomes along the equator of the cell with help of spindle apparatus. Here, each chromosome has two sister chromatids.

Metaphase I of meiosis I includes alignment of homologous pairs along the equator of the cell. Since the observed cell have individuals chromosomes aligned along the mid line of the cell, it is metaphase of mitosis or metaphase II of meiosis.

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The majority of triglyceride digestion occurs in the small intestine facilitated by the enzyme
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Answer:

pancreatic lipase

Explanation:

Enzymes from pancreas involved in triacylglycerol digestion are called pancreatic lipases and they catalyze the partial hydrolysis of triglycerides into a mixture of free fatty acids and acylglycerols. After digestion of lipids, monoglycerides and fatty acids associate with bile salts and phopholipids to form micelles. Micelles are structures that are necessary for the transport the poorly soluble monoglycerides and fatty acids to the surface of the enterocyte. But, micelles cannot be absorbed by epithelial cell, only freely dissolved monoglycerides and fatty acids can. Free fatty acids and monogycerids can just diffuse across the plasma membrane because of their nonpolar nature.

 Some absorption (e.g. for cholesterol) may be facilitated by specific transport proteins.

4 0
3 years ago
Carl Woese introduced the concept of domains in the 20th century. Which characteristic of scientific knowledge does this highlig
harkovskaia [24]
Option - IT IS BASED ON PREDICTION 
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hope this helps
8 0
3 years ago
Read 2 more answers
How independent assortment occurs in cells?
ratelena [41]
In metaphase 1 of meiosis , synapsed homologous chromosomes align independently of one another alone the metaphase plate . 
3 0
4 years ago
Explain the versatility of carbon atoms. Why is carbon the base element for all life's molecules?
Mashcka [7]

Answer:

Life is based on carbon; organic chemistry studies compounds in which carbon is a central element. The properties of carbon make it the backbone of the organic molecules which form living matter. Carbon is a such a versatile element because it can form four covalent bonds.

Explanation:

5 0
3 years ago
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The process in which brain connections which are repeated become covered and insulated with a layer of fat increasing the effici
fiasKO [112]

Answer:

Myelination

Explanation:

Myelin is a fatty substance composed of lipids which surrounds the axons of the nerve cells in the central nervous system. The myelin is formed by the oligodendrocytes in CNS and Schwann cells in PNS.

The plasma membrane of the oligodendrocytes containing the myelin covers the axons of the neurons in spiral fashion thus proving a sheath around through the process called "myelination".

This myelin sheath protects the neurons from the external environment as well as insulates the neuron which increases the efficiency of the impulse.

Thus, Myelination is the correct answer.

6 0
3 years ago
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