In this module, you have learned about the use of balancer chromosomes (such as TM2 and TM6C in the below crossing scheme) for isolating Drosophila mutants during EMS mutagenesis. Please inspect the following crossing scheme and choose which of the following statements is correct. A.TM6C is preferable over TM2 when performing mutagenesis B.EMS induces chromosomal inversion C.A balancer chromosome helps to isolate on which chromosome the mutant is located D.Following the above crossing scheme all flies with no TM2 or TM6C markers are mutants EMS+/+*/TM6C Or +/TM6C-TM2/TM6C*/* */TM6CoTM2/TM6Coo*/TM6C X */TM6C or +/TM6C X +/TM6C+/+ +/TM6Co

Lethal genes are alleles that result in an end of the entity that possesses them. In basic terms,…

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Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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In this module, you have learned about the use of balancer chromosomes (such as TM2 and TM6C in the below crossing scheme) for isolating Drosophila mutants during EMS mutagenesis. Please inspect the following crossing scheme and choose which of the following statements is correct.

	A.	TM6C is preferable over TM2 when performing mutagenesis
	B.	EMS induces chromosomal inversion
	C.	A balancer chromosome helps to isolate on which chromosome the mutant is located
	D.	Following the above crossing scheme all flies with no TM2 or TM6C markers are mutants

EMS
+/+
*/TM6C Or +/TM6C-
TM2/TM6C
*/* */TM6C
o
TM2/TM6C
o
o
*/TM6C X */TM6C or +/TM6C X +/TM6C
+/+ +/TM6C
o

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