Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

cis-trans test is related to crossing over mutation genetic map heredity

cis-trans test is related to
  1. crossing over
  2. mutation
  3. genetic map
  4. heredity

Grade:12th pass

1 Answers

Apoorva Arora IIT Roorkee
askIITians Faculty 181 Points
6 years ago
A method of genetic analysis that determines whether recessive mutations occur in a single gene or in different genes. The test was devised by the American geneticist E. Lewis in 1951.
In conducting the cis-trans test, the mutations under study are combined in the trans and cis positions. When the mutations are combined in the trans position, two individuals, each with one of the mutations under analysis, are crossed. When the mutations are combined in the cis position, an individual with both mutations is crossed with an individual of a wild (normal) type. In the trans test, that is, the functional test for allelism, if the mutations combined in the trans position belong to different genes, a hybrid organism is automatically obtained from an intact copy of each gene. In this case the recessive mutations are not manifested and the hybrid has a normal phenotype, that is, the mutations are complementary. If the combined mutations belong to the same gene, both copies of the given gene in the hybrid are negatively affected and a mutant phenotype appears, that is, the mutations are noncomplementary. hence related to crossing over.
Thanks and Regards
Apoorva Arora
IIT Roorkee
askIITians Faculty

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free