College Biology Practice Test 251

Human Embryo Quiz PDF: Questions and Answers - 251

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Human Embryo Questions and Answers PDF Download: Quiz 251

MCQ 1251: Human embryo remains enclosed in a sac called

A) scrotum

B) pericardium

C) placenta

D) amniotic sac

MCQ 1252: The sclerenchymatous cells are heavily lignified in

A) xylem

B) phloem

C) cortex

D) cuticle

MCQ 1253: Which one is true about Auxins?

A) promote apical dominance

B) promote fruit growth

C) induce parthenocarpy

D) all of above

MCQ 1254: 50 ml of water is needed to remove nitrogen in urea that is

A) 1g

B) 2g

C) 3g

D) 0.5g

MCQ 1255: In plants with alternation of generation, meiosis occurs during

A) transportation

B) sporogenesis

C) parthenogenesis

D) pollination

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