Biology>Genetics and Evolution>Principles of Inheritance and Variation>Neurospora Genetics

Neurospora Genetics

IMPORTANT

Neurospora Genetics: Overview

This topic covers the concept of Neurospora as a Genetic Tool.

Important Questions on Neurospora Genetics

HARD

IMPORTANT

Biology>Principles of Inheritance and Variation>Neurospora Genetics> Q 1

The following classes and frequencies of ordered tetrads were obtained from the cross between $a^{+} b^{+} x ab$ in Neurospora (Only one member of each pair of spores are shown).

1-2	3-4	5-6	7-8	Number of Asci
$a^{+} b^{+}$	$a^{+} b^{+}$	$ab$	$ab$	1766
$a^{+} b^{+}$	$ab$	$a^{+} b^{+}$	$ab$	220
$a^{+} b^{+}$	${ab}^{+}$	$a^{+} b$	$ab$	14

What is the order of genes in relation to the centromere?

HARD

IMPORTANT

Biology>Principles of Inheritance and Variation>Neurospora Genetics> Q 2

In Neurospora, the arrangement of Ascospores in ascus is 2a⁺ : 4a : 2a⁺ showing:

HARD

IMPORTANT

Biology>Principles of Inheritance and Variation>Neurospora Genetics> Q 3

Which of the following is an epigenetic mechanism that has been studied using Neurospora?

EASY

IMPORTANT

Biology>Principles of Inheritance and Variation>Neurospora Genetics> Q 4

The fungi used in genetic engineering is:

MEDIUM

IMPORTANT

Biology>Principles of Inheritance and Variation>Neurospora Genetics> Q 5

In Neurospora both recessive and dominant alleles express their effect because:

EASY

IMPORTANT

Biology>Principles of Inheritance and Variation>Neurospora Genetics> Q 6

Cotyledons are also called-

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