Answer:
Heamoglobin is the structure present in red blood cells which is involved in carrying of oxygen from the blood to all parts of the body.
Explanation:
Tertiary Structure : A molecule of heamoglobin consists of four groups of heme and a group of globulin.A molecule of heamoglobin contains four iron atoms to which oxygen molecules get attached. As there are four iron atoms in a molecule of heamoglobin so a single heamoglobin molecule can carry four oxygen atoms.
Quaternary structure: Multi sub unit globular proteins combine to make the Quaternary structure of heamoglobin. Alpha helices are made by the amino acids present in heamoglobin. Non helical segments, short in length, connect the alpha helices. The helical segments are stabilized by hydrogen bonds which results in folding of the polypeptide into the specific Quaternary shape.
Function:
1.The basic function of heamoglobin is that it transfers oxygen from the lungs to different parts of the body.
2. CO2 ions and hydrogen ions are also transported by the heamoglobin.
Answer:
Causes fetal gonads to develop as testes shortly after fertilization.
Explanation:
The SRY gene is a sex-determining gene that is located on the Y chromosome. It is responsible for the production of a protein which is a testis-determining factor that enhances the development of a testis.
The SRY gene plays an important role in gender determination. Mutations that takes place in the SRY gene give rise to XY females with gonadal dysgenesis which is a developmental disorder of the reproductive system in the male or female. The individuals appear to be normal females at birth, but during the stage of puberty, they do not develop secondary sexual characteristics, they do not menstruate, and have fibrous gonads that does not contain eggs.
Answer:
A) Cell Division helps animals repair old cells.
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Answer: THE ANSWER IS C
Explanation: HOPE THIS HELP
