The organelle that contains enzymes for the glyoxylate cycle in plants is the:
A. Chloroplast
B. Peroxisome
C. Glyoxysome
D. Mitochondria
Answer: Option C
Solution (By JKExamLibrary)
Glyoxysomes are specialized peroxisomes in oil-storing seeds that contain glyoxylate cycle enzymes, converting lipids to carbohydrates during germination.
Explanation:
Mendel's dihybrid cross (e.g., yellow round × green wrinkled) gave a 9:3:3:1 phenotypic ratio in the F₂ generation, illustrating independent assortment.
Explanation:
The sporozoite is the motile infective stage injected by the female Anopheles mosquito into the human host. It invades liver cells. Gametocytes are the stage taken up by the mosquito, merozoites are released from liver and infect RBCs.
Assertion (A): Red blood cells lack a nucleus in mammals.
Reason (R): The absence of a nucleus allows more space for hemoglobin, increasing oxygen-carrying capacity.
A.A is true, but R is false.
B.A is false, but R is true.
C.Both A and R are true, and R is the correct explanation of A.
D.Both A and R are true, but R is not the correct explanation.
Explanation:
Mature mammalian RBCs are anucleate, having lost their nucleus during maturation. This provides more space for hemoglobin, enhancing oxygen transport. The reason correctly explains the assertion. Nucleated RBCs are found in other vertebrates.
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