Sexual Reproduction - General Concepts — Practice Questions
Free NEET Biology multiple-choice questions on Sexual Reproduction - General Concepts. Attempt each question and reveal the answer with a full explanation.
Grey crescent is the area - At the point of entry of sperm into ovum Just oppsite to the site of entry of sperm into ovum At the animal pole At the vegetal pole A change in the amount of yolk and its distribution in the egg will effect : Fertilization Formation of zygote Pattern of cleavage Number of blastomeres produced Product of sexual reproduction generally generates Longer viability of seeds Prolonged dormancy New genetic combination leading to variation Large biomass Which of the following flowers only once in its life-time? Mango Jackfruit Bamboo species Papaya In some plants, the female gamete develops into embryo, without fertilization. This phenomenon is known as (1) Parthenogenesis (2) Autogamy (3) Parthenocarpy (4) Syngamy What is the role of Ethylene in sex expression in plants like Cucumber? It promotes the formation of female flowers It promotes the formation of male flowers It causes the plant to become sterile It has no effect on flower sex Which of the following physiological effects is specifically associated with Ethylene? Promotion of root hair formation Inhibition of leaf abscission Promotion of bolting Synthesis of alpha-amylase in seeds Which of the following organisms breed only once in their lifetime? Pacific salmon fish and Bamboo Oysters and Pelagic fishes Birds and Mammals Frogs and Insects