Mendel's law of segregation is based on the separation of:
A. Centromeres
B. Sister chromatids
C. Non-homologous chromosomes
D. Homologous chromosomes during meiosis I
Answer: Option D
Solution (By JKExamLibrary)
The law of segregation states that two alleles of a gene segregate during gamete formation, which corresponds to the separation of homologous chromosomes in anaphase I.
Explanation:
The pituitary gland controls many other endocrine glands via tropic hormones (TSH, ACTH, FSH, LH). It is regulated by the hypothalamus. Thus, it is often called the master gland.
Explanation:
Natural active immunity develops when a person is exposed to a live pathogen, develops an immune response, and creates memory cells. Artificial active is from vaccination. Passive immunity involves receiving antibodies.
Explanation:
Hematopoiesis is the production of formed elements of blood (red cells, white cells, platelets) from hematopoietic stem cells in the bone marrow. Hemolysis is RBC destruction, hemostasis is stopping bleeding, hematuria is blood in urine. Erythropoietin stimulates RBC production.
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