Search Colleges, Exams, Schools & more
Login
Test Cross MCQ - NEET Practice Questions with Answers
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET
Quick Facts
-
Test Cross is considered one of the most asked concept.
-
15 Questions around this concept.
Solve by difficulty
EASYTest cross in plants or in Drosophila involves crossing
A cross in which an organism showing a dominant phenotype is crossed with the recessive parent to know its genotype is called :
Concepts Covered - 1
Test Cross
- From what we have learnt, it is clear that though the genotypic ratios can be calculated using mathematical probability, but simply looking at the phenotype of a dominant trait, it is not possible to know the genotypic composition.
- Therefore, a test cross is performed between phenotypically dominant plant (whose genotype is unknown) and a recessive plant (whose genotype is obviously homozygous recessive).
- Result:
- If the dominant-expressing organism is a homozygote, then all F1 offspring will be heterozygotes expressing the dominant trait.
- If the dominant expressing organism is a heterozygote, the F1 offspring will exhibit a 1:1 ratio of heterozygous and recessive homozygotes.
Study it with Videos
"Stay in the loop. Receive exam news, study resources, and expert advice!"
Books
Reference Books
Clear your Basics with NCERT
E-books & Sample Papers
Get Answer to all your questions
Begin a career in Medical and Allied Sciences. Admissions Open for
Amongst top 3% universities globally (QS Rankings) | Wide Range of scholarships available
MAHE Manipal BSc Nursing 2026
ApplyNAAC A++ Accredited | Accorded institution of Eminence by Govt. of India | NIRF Rank #3
SCSVMV Deemed to be University | AHA Admissions 2026
ApplyAlied Health Sciences at SCSVMV | NAAC 'A' Grade | AICTE & UGC Aproved | 100% Placement Support | Merit-based Scholarships
Virohan Allied & Healthcare Programs
ApplyAllied & Healthcare programs | 20+ Partner Universities & Institutes | 98% placement record
SRM Kattankulathur Dental College Admissions 2026
ApplyRanked #19 by NIRF, NAAC A++ Accredited | Recognized by dental council of India
SRM Medical College Admissions 2026
ApplyRanked #18 by NIRF, NAAC A++ Accredited | Unmatched clinical exposure with over 7 lakh patients yearly