Inheritance

Q.

Explain the difference between heredity and inheritance?

Q.

Who Is the father of experimental genetics?

Q.

Justify the statement.

Genes and chromosomes have similar behavior.

Q.

In the human blood grouping, the four basic blood types are type A, type B, type AB, and type O. The blood proteins A and B are :

(a) simple dominant and recessive traits (b) incomplete dominant traits

(c) codominant traits (d) sex-linked traits

Q.

How does genetics affect our lives?

Q. Some people have blue eyes, while others have brown. Two parents both having brown eyes have two children with blue eyes. Which of the following statements hold true regarding this?

1. The allele for brown coloured eye is dominant.
2. The probability of their next child having blue eyes is 50%.
3. The probability of their next child having brown eyes is 75%.
4. Both parents have one allele for blue eyes and one allele for brown eyes.

Q.

What constitutes the link between one genration and the next?

Q. The difference in characters between the organisms of same species is called .

1. variation
2. evolution
3. speciation

Q.

Is sickle cell anaemia polygenic inheritance?

Q. Why the study of fossils is an important aspect of the study of evolution?

Q. What is the Bombay phenotype?

Q. Give the basic features of the mechanism of inheritance.

Q.

With the help of suitable example, explain how does natural selection bring variation in the species population?

Q. _____ chromosomes consists of only one arm.

1. Acrocentric
2. Metacentric
3. Sub-metacentric
4. Telocentric

Q. Which of the following carries information for protein synthesis from the genes?

1. DNA
2. rRNA
3. mRNA
4. tRNA

Q.

What are the three types of palaeontologists?

Q. The gradual process in which organisms develop more complex body designs and change in characteristics through inheritable changes in DNA over generations is called ___________.

1. evolution
2. speciation
3. natural variation
4. heredity

Q. ______ are known as the 'carriers' of heredity.

1. Chromosomes
2. RNA
3. Nucleus
4. Genes

Q.

The palisade cells of a species of plant contain 28 chromosomes. How many chromosomes will there be in each gamete produced by the plant ?

(a) 56 (b) 28 (c) 14 (d) 4

Q. Match the following:
$\begin{array}{cccc}& \text{Column I}& & \text{Column II}\\ \text{1}& \text{Charles Darwin}& \text{A}& \text{Inheritance by acquired characters}\\ \text{2}& \text{Gregor Mendel}& \text{B}& \text{Theory of natural selection}\\ \text{3}& \text{Jean Lamarck}& \text{C}& \text{Law of inheritance}\end{array}$

1. 1$\to$A, 2$\to$B, 3$\to$C
2. 1$\to$C, 2$\to$B, 3$\to$A
3. 1$\to$B, 2$\to$C, 3$\to$A
4. 1$\to$A, 2$\to$C, 3$\to$B

Q.

Give examples of single gene disorders, chromosomal disorders, and multifactorial disorders.

Q. Assertion :The two strands of DNA are complementary to each other. Reason: Adenine specifically forms hydrogen bonds with guanine whereas cytosine forms hydrogen bonds with thymine.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q.

How do genetic disorders happen?

Q.

What are the 3 types of genetic disorders?

Q.

Question 46
Give the basic features of the principle of inheritance.

Q.

How many human genetic disorders are known?

Q. How did Lamarck explain the inheritance of acquired characters using the example of a giraffe?

Q.

Write the location and function of the genes.

Q. Which among the following statements are correct with respect to homologous organs?

1. They perform same function.
2. They are structurally similar.
3. They indicate common ancestory.
4. (b) and (c) above.

Q. Many smaller nucleotides join together to form:

1. Amino acids
2. Nucleic acids
3. Nitrogenous bases
4. Ribose