Sickle cell anemia is caused by a defect in the oxygen-carrying pigment hemoglob

Question

Sickle cell anemia is caused by a defect in the oxygen-carrying pigment hemoglobin ability of the blood to clot ability of red blood cells to fight infection chloride ion transport protein A nucleic acid containing 32% thymine would contain how much cytosine: 18% 32% 36% 64% In plants and animals, the zygote develops by which of the following processes? mitosis meiosis syngamy synapsis reduction division In the absence of oxygen, can cells utilize the electron transport chain? Yes, in the case that a cell can use a terminal electron acceptor other than oxygen, it can make use of the electron transport chain. No, oxygen is the primary electron acceptor in electron transport chains in all cell types Enzymes function to: react with other enzymes catalyze chemical reactions. transport molecules and ions across membranes regulate messages between cells. The point of constriction on chromosomes that contains repeated DNA sequences that bind specific proteins is called: The kinetochore The centromere The cohesin complex The centriole The centrosome Many metabolic pathways are ultimately connected with ATP: either with the generation of ATP, or wish the requirement of ATP for that pathway to function. Why is ATP so important to metabolism? Hydrolysis of ATP is used to drive exergonic reactions Hydeolysis of the bond between adenine and ribose in ATP is commonly used to release energy that can be used to drive other cellular reactions The phosphate groups of ATP are held together by unstable bonds that can be broken to release energy ATP is a protein that serves as the energy currency of cells In glycolysis, amajor portion of the energy remains in the final product, which is called: Glucose Citrate Glyceraldehyde 3 -phosphate(G3P) Pyruvate

Explanation / Answer

17. The option 'A' is correct. Sickle cell anemia is caused due to mutation in one of the beta chain of haemoglobin. I one of the beta chain glutamic acid gets substituted by valine. Thus in short missense mutation occurs in beta chain of haemoglobin.

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