The process by which a cell engulfs liquid droplets is:
A. Endocytosis
B. Phagocytosis
C. Exocytosis
D. Pinocytosis
Answer: Option D
Solution (By JKSSB Mock Tests)
Pinocytosis (cell drinking) is a type of endocytosis where the cell membrane forms small vesicles to engulf extracellular fluid and dissolved substances. Phagocytosis is for large particles, exocytosis is export, endocytosis is general term.
Explanation:
The Law of Segregation (Mendel's First Law) states that an organism possesses two alleles for each trait, and these alleles separate (segregate) during the formation of gametes (meiosis). Each gamete receives only one allele. This explains why a recessive trait can disappear in the F1 generation but reappear in the F2 generation.
Explanation:
Myoglobin is an oxygen-binding protein in muscle. Hemoglobin contains iron and is red; hemocyanin contains copper and is blue. Hemoglobin is in RBCs.
Explanation:
Luteinizing hormone (LH) binds to Leydig cells in the testes, stimulating testosterone production. FSH stimulates Sertoli cells for spermatogenesis. GnRH is hypothalamic.
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