Intermediate Biology Exam 2023

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Questions and Answers

Which of the following is the symbol for mating?

○

☐

♦ (correct)

⚪

Which of the following is not a chromosol disorder?

Phenyl ketonuria (correct)

Down's syndrome

Turner's syndrome

Klinefelter's syndrome

In which of the following females heterogamety is found?

Humans

Cat

Honey bees

Birds (correct)

The trait which is expressed in heterozygous plants is known as....

Dominant Signup and view all the answers

How many types of genotypes are there for ABO blood groups?

6 Signup and view all the answers

Which of the following scientists prepared recombination map?

Morgan Signup and view all the answers

Which laws of inheritance were propounded on basis of monohybrid?

1, 2 and 3 Signup and view all the answers

Which pentose sugar is present in RNA?

Ribose Signup and view all the answers

Due to which of the following reasons there is approximately equal distance maintained between two polynucleotide strands of DNA?

The bases in the two strands are paired through hydrogen bonds forming base pairs. Signup and view all the answers

Which of the followings is not the reason for stability of DNA?

In DNA every nucleotide residue has 2'-hydroxyl group in the pentose sugar. Signup and view all the answers

The process of evolution of different species in a given geographical area starting from a point and radiating to other geographical areas is known as.....

Adaptive radiation Signup and view all the answers

Which of the following statements is false about the origin of life?

In his experiment, Miller used oxygen, methane, hydrogen, ammonia and electric discharge at 800°c temperature in a closed flask. Signup and view all the answers

The DNA finger printing technique was initially developed by who among the following?

Alec Jeffreys Signup and view all the answers

At which of the following sites the repressor protein binds to lac operon?

Operator region Signup and view all the answers

Who among the following confirmed penicillin as a powerful and effective antibiotic?

Alexander Fleming Signup and view all the answers

Which of the following produces citric acid?

Acetobacter aceti Signup and view all the answers

Which of the following statements is incorrect about streptokinase?

It functions as immunosuppressant. Signup and view all the answers

Which of the following statements is incorrect about Trichoderma?

It is a free living bacterium. Signup and view all the answers

Which of the following fungi terms mycorrhiza?

Glomus Signup and view all the answers

Who discovered blood circulation?

William Harvey Signup and view all the answers

Which of the following statements is false about heroin?

It is also called coke. Signup and view all the answers

Study Notes

This document is an examination paper, likely for a biology course.
The exam covers topics from intermediate biology.
The exam has two sections: Section A and Section B.
Section A contains objective-type questions.
Section B contains short and long answer questions.
The examination is to be completed in 3 hours and 15 minutes.
Candidates must fill in their question booklet number on the OMR sheet.
Candidates must answer questions in their own words, where possible.
Figures in the margin indicate marks.
Candidates have 15 minutes to read the questions before starting the exam.
Candidates are prohibited from using any electronic devices during the examination.

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Description

This examination paper is designed for intermediate biology students. It comprises two sections: objective-type questions in Section A and short/long answer questions in Section B, to be completed in a total of 3 hours and 15 minutes. Students will have 15 minutes of reading time before starting the exam.