Principles of Inheritance and Variation A diploid organism is heterozygous for 4 loci, how many types of gamet... Welcome to the NCERT Solutions for Class 12 Biology - Chapter Principles of Inheritance and Variation. This page offers a step-by-step solution to the specific question from Exercise 1, Question 3: A diploid organism is heterozygous for 4 loci, how many types of gametes can be produced?. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience. Locus is a fixed position on a chromosome, which is occupied by a single or more genes. Heterozygous organisms contain different alleles for an allelic pair. Hence, a diploid organism, which is heterozygous at four loci, will have four different contrasting characters at four different loci. For example, if an organism is heterozygous at four loci with four characters, say Aa, Bb, Cc, Dd, then during meiosis, it will segregate to form 8 separate gametes. If the genes are not linked, then the diploid organism will produce 16 different gametes. However, if the genes are linked, the gametes will reduce their number as the genes might be linked and the linked genes will be inherited together during the process of meiosis. Locus is a fixed position on a chromosome, which is occupied by a single or more genes. Heterozygous organisms contain different alleles for an allelic pair. Hence, a diploid organism, which is heterozygous at four loci, will have four different contrasting characters at four different loci. For example, if an organism is heterozygous at four loci with four characters, say Aa, Bb, Cc, Dd, then during meiosis, it will segregate to form 8 separate gametes. If the genes are not linked, then the diploid organism will produce 16 different gametes. However, if the genes are linked, the gametes will reduce their number as the genes might be linked and the linked genes will be inherited together during the process of meiosis. Add Your Answer Add Your Answer Report an Issue Other Questions of Chapter Principles of Inheritance and Variation Other Questions of Chapter Principles of Inheritance and Variation Popular questions of class 12 Biology Popular questions of class 12 Biology Recently Viewed Questions of Class 12 Biology Recently Viewed Questions of Class 12 Biology Taking examples under each category, discuss upstream and downstream processing. Name the first transgenic cow. Which gene was introduced in this cow? What is the main idea behind “Joint Forest Management Concept” introduced by the Government of India? Which type of food would have lactic acid bacteria. Discuss their useful application. Give the full form of ELISA. Which disease can be detected using it? Discuss the principle underlying the test. 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Learn about Full form significance Use our online calculator for quick calculations and problem solving Browse our comprehensive glossary of important terms and definitions Thanks for help!!! Formula for calculating no. of gametes is 2 to the power n, where n is no of the genes. Here heterozygous for four loci means, four diff genes as alleles for a gene are present on same locus on the homologois pair. So the answer is 2^4=16 I can't understand I can't understand Plz ask me how many types of gametes can be produced ?? So answer is 8 or 16? If 16 please explain I didn’t understand formula is 2^n.where n=no. of loci .therefore,2^4=16 types of gametes Ephraim Malekar If a diploid organism is homozygous for two loci then the gametes formed will be say A B C D respectively.Since it\'s a diploid organism the number of gametes will be 2×n. Therefore the number of gametes will be 2×4=8 I have a question ... If rwo loici are homozygous. .. thn vot will be the no. Of gametes produced... Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 3: A diploid organism is heterozygous for 4 loci, how many types of gametes can be produced?... . Students Also Read Assembly Topics & Paragraphs Basic Mathematics Career Opportunities Education Glossary Free Online Calculators Full Forms of Abbreviations Health & Fitness Multiplication Tables State Boards Of India Science and Environment The Greatest Indian Important links Education Full Form Educational Glossary Assembly Topics, Paragraphs, and Essays NCERT Sample Papers Previous Year Question Papers Scholarship for Students Multiplication Tables CBSE Topper Answer Sheets Previous Year Question Papers CBSE Board Paper Professional Course © 2026 SaralStudy Terms & Conditions Report a problem on Specifications: