CBSE Class 12 Biology Daily Practice Questions 12 October 2023

CBSE Class 12 Biology Daily Practice Questions 12 October 2023: Solving CBSE Class 12th Biology daily practice questions can help students test their preparation for the test. By figuring out how many correct responses they have provided to the questions, students can evaluate their preparation, and enhance it (if required). We have provided CBSE Class 12 Biology Daily Practice Questions 12 October 2023 to help students in the same mission.

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CBSE Class 12 Biology Daily Practice Questions 12 October 2023

Students can analyze their CBSE Class 12 Biology preparation by solving daily practice questions provided below: 

Question 1: Multiple-Choice Question

A human ovum completes its second meiosis: 

(a) at the time of fertilisation 

(b) when the sperm touches the zona pellucida 

(c) when the sperm gains entry into the cytoplasm of the ovum 

(d) when the acrosome of the sperm releases its enzymes on corona radiata

Question 2: Very Short Answer Type Question

(a)From which end of the ovule, and how does the pollen tube gain its entry into the embryo sac of a Hibiscus flower? 

(b) State the fate of the male nuclei present in the pollen tube.

Question 3: Short Answer Type Question

(a) Expand the abbreviations given below, used for different modes of assisted reproductive technologies:

(1) ZIFT 

(2) ICSI 

(3) IUT 

(4) GIFT 

(b) Which one of them cannot be considered as a procedure of IVF? Give reasons in support of your answer.

Question 4: Case-Based Question

Study the diagrammatic representation given below of the Earth with regions marked ‘A’ and ‘B’ respectively. Answer the questions that follow.

(a) Write the observations made regarding the species diversity when moving. Give two reasons also. 

(b) Stating the reason, mention the approximate number of bird species recorded in India. 1 OR Name the region in the world that records the greatest biodiversity and mention why. 

Question 5: Long Answer Type Question

You are given a tall pea plant and asked to determine its genotype. Name and explain the cross that you will carry out to find the possible genotype of the given tall pea plant.

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