MCQs

Q441: Identify the exact function of ATP hydrolysis during muscle contraction?

• A) Formation of cross bridges
• B) Breaking of cross bridges
• C) Displacement of tropomyosin

Q442: One of the endocrine glands responsible for failure in ovulation is?

• A) Pituitary
• B) Placenta
• C) Thyroid

Q443: The reason behind the slow healing of cartilage is?

• A) Absence of minerals in matrix
• B) Absence of nervous supply
• C) Absence of blood supply

Q444: H zone of sarcomere consists of?

• A) Proteins supporting myosin filaments
• B) Myosin overlapped by actin
• C) Only myosin filament

Q445: Activity of which organ would be compromised with impaired function of smooth muscles?

• A) Heart
• B) Lungs
• C) Stomach

Q446: Which cell is most important to cause bone resorption? Osteoblast , Osteoclast ,Osteocyte , Fibroblast

• A) Osteoblast
• B) Osteoclast
• C) Osteocyte

Q447: The process by which unwanted structures are engulfed and digested within the lysosome is termed as?

• A) Autophagy
• B) Autolysis
• C) Endocytosis

Q448: The phenomena of gene linkage rejects the concept of?

• A) Law of segregation
• B) Law of independent assortment
• C) Epistasis

Q449: Which of the following is used to determine linkage between two gene pairs? A. Test cross B. Back cross C. Monohybrid cross D. Dihybrid cross

• A) Test cross
• B) Back cross
• C) Dihybrid cross

Q450: Fluidity of biological membranes is maintained by?

• A) Glycoprotein
• B) Saturated fatty acid
• C) Phospholipids