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Vlada [557]
3 years ago
14

A biochemist modified a protein so the amino acid lysine occurred where the amino acid aspartic acid previously occurred. this c

hange could ...
Biology
1 answer:
Cerrena [4.2K]3 years ago
6 0
<span>A biochemist modified a protein so the amino acid lysine occurred where the amino acid aspartic acid previously occurred. this change could ... </span>alter the protein's tertiary structure. Hope this Helps 
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B cells interacting with helper t cells are stimulated to differentiate when _____.
madam [21]
There are choices for this question namely:

<span>A) B cells produce IgE antibodies
B) B cells release cytokines
C) cytotoxic T cells present the class II MHC molecule-antigen complex on their surface
D) helper T cells release cytokines

The correct answer is "helper T cells release cytokines". Cytokines are released by helper T cells when B cells attach to them via receptors. These T cells "help" these B cells to differentiate by secreting certain cytokines. When B cells differentiate, they are converted to plasma cells and able to secrete antibodies to the antigen presented to the T cells. </span>
3 0
3 years ago
_____ communicate with the body to ensure homeostasis. Feedback loops Cells Enzymes Plasma membrane
blsea [12.9K]
The feedback loops communicate with the body to ensure homeostasis.

Answer is A. Feedback Loops 

It will help you

Have a great day
8 0
3 years ago
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Through what process do cells become specialized so they can perform specific functions within organisms? A. mitosis B. fertiliz
finlep [7]

Answer:

The correct answer is C. differentiation.

Explanation:

Cell differentiation is a process via which generic embryonic cells are transformed into specialized cells through a process of gene expression. Certain signals from inside and outside our body initiates gene expression.

Cell differentiation occurs at various stages of development, which causes the size and the shape of the cell to change dramatically.

Importance of cell differentiation:

  • Plays vital role in embryonic development
  • Helps in developing organisms throughout their life

3 0
3 years ago
What is considered the ultimate wonder of cells
Lapatulllka [165]
According to G.D Budhiraja in his book "The Natural Way of Healthy Aging," the ultimate wonder of cells is the egg cell. 

The egg cells is considered to be the ultimate wonder of cells because of its potential to form another human being. Once fertilized, the egg cell multiplies and grows, and "seems to know" just the right timing for certain processes to occur within the embryo or fetus. It seems to know when certain hormones should be produced, when it should implant in the uterus, and when the hands, legs, feet, hair, and other parts of the embryo and fetus should grow. 

7 0
3 years ago
Hemoglobin is a protein that carries oxygen around you body. What is hemoglobin made from? A. Nucleic Acids b.monosaccharides c.
Rasek [7]
The answer is Amino Acids
5 0
3 years ago
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