Download App

Principles of Inheritance and Variation — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYPrinciples of Inheritance and Variation3 Marks
Question
Study the given pedigree chart and answer the questions that follow:
  1. Is the trait recessive or dominant?
  2. Is the trait sex-linked or autosomal?
  3. Give the genotypes of the parents shown in generation I and of their third and fourth child in generation II.
✓

Answer

  1. It is a recessive trait.
  2. It is an autosomal trait.
  3. Generation I → Aa and Aa.
Generation II → Third child - aa.

Fourth child - Aa.

Principles of Inheritance and Variation.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Answer the following questions in detail." from Principles of Inheritance and Variation→Principles of Inheritance and Variation — all question types→BIOLOGY STD 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

Digrammatically represent the experimental steps in cloning and expressing an human gene (say the gene for growth hormone) into a bacterium like E. coli ?
→
Explain sex determination in human beings.
→
Draw the following diagrams related to human reproduction and label them.
  1. The zygote after the first cleavage division.
  2. Morula stage.
  3. Blastocyst stage. (sectional view)
→
AtRNA is charged with the amino acid methionine.
  1. Name the process involved in attachment.
  2. Point out the mRNA codon and anticodon on tRNA for this amino acid.
  3. Name the enzyme responsible for this attachment.
→
Why do animals need to maintain homeostasis?
→
  1. What is primary productivity? Why does it vary in different types of eco - systems?
  2. State the relation between gross and net primary productivity.
→
Answer the following questions:
What advantages a seed provides to a plant?
→
Define parasitism and give any 'two' types with suitable example of each.
→
Give scientific : Pituitary may be considered as the coordinator of endocrine orchestra but not master endocrine gland.
→
Which three options could be thought for increasing food production?
→