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ratelena [41]
3 years ago
11

A person you know has been in an automobile accident. After the accident, you notice a dramatic personality change. Before the a

ccident, he was industrious and well liked; after the accident, he is profane, impetuous, and incapable of working toward a goal. Which portion of the brain was most likely damaged?
Biology
1 answer:
iragen [17]3 years ago
4 0

Answer:

FRONTAL LOBE

Explanation:

The frontal lobe can be located at the anterior part of the brain, extending back to a fissure known as the central sulcus. The frontal lobe functions and helps in coordination of reasoning, motor control, emotion, and language. It contains the motor cortex, which is involved in planning and coordinating movement; the prefrontal cortex, which is responsible for higher-level cognitive functioning; and Broca’s area, which is essential for language production.

Let say for example Kyle is my friend who was a victim of an accident.

Before the accident, he was industrious and well liked BUT after the accident, he is profane, impetuous, and incapable of working toward a goal.

Such changes in personality would be consistent with loss of impulse control which is a significant frontal lobe function. With connections between the planning functions of the frontal lobe and the emotional processes of the limbic system severed, Kyle had difficulty controlling his emotional impulses, attitudes and abiiity of working towards his goals.

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What is the relationship between DNA, chromosomes, and<br> the nucleus?
aliya0001 [1]

Answer:

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

Other Info That Might Help:

In contrast, in eukaryotes, all of the cell's chromosomes are stored inside a structure called the nucleus. Each eukaryotic chromosome is composed of DNA coiled and condensed around nuclear proteins called histones. Humans inherit one set of chromosomes from their mother and a second set from their father.

3 0
2 years ago
In which of the following ways is DNA replication similar to transcription?
SVEN [57.7K]

b) cytosine pairs with guanine in both. literally in dna replication,

<em>adenine goes with thymine</em>

<em>thymine goes with adenine</em>

<em>guanine goes with cytosine</em>

<em>cytosine goes with guanine</em>

hope this helps mina! :) <3

6 0
3 years ago
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There are millions of organisms on Earth that scientists have classified into different levels of organization. Which of these c
larisa86 [58]

Answer:

i like to eat eat eat aplles and bannanas i like to eat eat eat aplles and bannanas

Explanation:

lolololoolololololololololololololololololololololololololololololololololololo glorrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrria.

4 0
3 years ago
Which property would be classified as expendable?
Andrej [43]
Expendable properties are those properties that are consume in use or that lose their identity in use. It also include those properties that become an integral part of other property when put to use and those properties which have an expected service life of less than one year. One example of expendable properties is materials and supplies given to an army unit.
4 0
3 years ago
Select the true statements about protein secondary structure.
saul85 [17]

Answer:

C.The β‑pleated sheet is held together by hydrogen bonds between adjacent segments.

Explanation:

Hello!

The most common secondary structures are α-helix and β-sheets. The structures are defined by regular hydrogen bonds formed between the N-H and C=O groups of the amino acids that form the chain. These structures form in segments of the protein as an intermediate before it folds into the 3D tertiary structure.

<u>α helix  </u>

It is a cylindrical structure that comprehends a helical backbone, while the side chains extend outward in a helical distribution. The α-helix stabilizes through hydrogen bonds between the amines and carbonyls groups of the backbone. Each carbonyl group forms a hydrogen bond with the amine group four residues later in the main chain. Thus, except for the amino acids near the end of the α-helix, all the carbonyls and amines groups in the main chain are linked by hydrogen bonds. Each residue corresponds to a translation of 1,5Ǻ and a turn of 100º this equals 3,6 residues per turn.

From the observer point of view, if the rotation of the helix is clockwise or right-handed, it's called dextrorotation and if the rotation is counterclockwise or left-handed it's called levorotation. Dexorotation or dextrogyre is the most common rotation of α-helixes in proteins. Levorotation or levogyre is very rare but can be found in proteins with a large content of achiral glycine.

<u>β-sheets (β-pleated sheets) </u>

This structure consists of at least two β-strands (polypeptide chains), the strands conform a backbone of three to ten amino acids in an extended formation that connects laterally with hydrogen bonds. The distance between adjacent amino acids in a β-strand is approximately 3,5Ǻ in contrast to the 1,5Ǻ distance of an α helix. The chains that form a β-sheet have directionality conferred by their N-terminus and C-terminus. Adjacent β-strands can form hydrogen bonds in antiparallel, parallel or mixed arrangements. In the antiparallel arrangement, the adjacent strands are said to have opposite directions (N-C vs C-N) this allows the bonds to be established between the amines and carbonyls groups of each amino acid with the carbonyls and amines of the adjacent amino acid. This way the bonds between carbonyls and amines are planar, which allows strong interstrand stability.

In the parallel arrangement, the adjacent strands have the same direction (N-C vs N-C). In this type of arrangement, each amine forms a hydrogen bond with the carbonyl of the adjacent amino acid, but its carbonyl group forms a hydrogen bond with the amine group of the amino acid two residues later.

I hope you have a SUPER day!

6 0
3 years ago
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