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arlik [135]
2 years ago
15

What are red blood cells and what do they do?

Biology
2 answers:
Anvisha [2.4K]2 years ago
6 0

Explanation: In your blood you have different kinds of cells. You have some cells that are called red blood cells that carry oxygen to your body and they can carry carbon dioxide back to your lungs so that's what your blood red cells are.

Verdich [7]2 years ago
4 0
Hemoglobin is the protein inside red blood cells that carries oxygen. Red blood cells also remove carbon dioxide from your body, transporting it to the lungs for you to exhale. Red blood cells are made inside your bones, in the bone marrow. They typically live for about 120 days, and then they die.
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How does a DNA mutation cause a disease like sickle-cell anemia? (1 point)
Arte-miy333 [17]

Explanation:

nide iabr o

4 0
3 years ago
Human blood groups are governed by three alleles, IA, IB, and i. IA and IB are codominant and i is recessive to both. A man who
Ira Lisetskai [31]

Answer:

They could have all four type phenotype that are A, B, AB, and O

Explanation:

If the man has A blood group and the woman has B blood group then the genotype of man can be IAIA or IAi and the genotype of woman can be IBIB or IBi.

               IA      i

       IB   IAIB   IBi

       i     IAi       ii

So if the genotype of the parents are IAi and IBi then out of four offspring one could have AB blood group, second could have B blood group, third could have A blood group and fourth could have O blood group as shown in the cross above.  

7 0
3 years ago
Making changes to the secondary structure of hair has a different outcome than making changes to its tertiary or quaternary stru
DanielleElmas [232]

The outcome differs in the way that the protein folds itself at each level. The changes in the way that it folds lead to:

modifications in the function, shape or in the combination with other proteins.

Protein has different levels of structure. Each of them is related to how the amino acids and other molecules interact with each other. Hair is made of proteins, so if one of the structures is affected, the hair is too.

Let's analyse what happens in each level of structure:

  • In the case of the primary structure, which is the sequence of amino acids, the modification will give a non-functional protein that will not fold into the following structural level. So, there won't be new hair.
  • For the secondary structure, a modification here can lead to a different folding. In other words, it can change from an α helix to a β pleated sheet or the other way round. This will give a different shape to the hair, like curly or straight.
  • A modification in the tertiary structure modifies the interaction of the R groups in the protein, so the three-dimensional structure that this interaction gives will change, giving a different type of hair.
  • Lastly, if we modify the quaternary structure, the protein won't interact with some proteins, but it may interact with others.

In conclusion, the modification of the secondary structure changes the interaction between the elements of the protein giving hair with different shapes.

Learn more at:

brainly.com/question/1548720?referrer=searchResults

7 0
2 years ago
What are the functions of marker proteins, transport proteins, and receptor proteins?
insens350 [35]
Marker/Recognition proteins extend across the cell membrane and serve to identify the cell. The immune system uses these proteins to tell good cells from foreign invaders. 
8 0
3 years ago
Read 2 more answers
3. Label the phases of the cell cycle in the pictures above
Veseljchak [2.6K]

Answer:

Prophase

Prometaphase

Metaphase

Anaphase

Cytokinesis and Telophase (Yes two answers)

Explanation:

Prophase is when the chromosomes condense

Prometaphase is when nuclear envelope dissolves

Metaphase, M for middle, meaning all chromosomes line up at middle

Anaphase, A for apart, meaning all chromosomes are taken apart in half

Telophase is the formation of 2 different nuclei, and Cytokinesis splits it

3 0
2 years ago
Read 2 more answers
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