English
Tamil Nadu Board of Secondary EducationHSC Science Class 12

Select the correct statement from the ones given below with respect to dihydrid cross - Botany

Advertisements
Advertisements

Question

Select the correct statement from the ones given below with respect to dihydrid cross

Options

  • Tightly linked genes on the same chromosomes show very few combinations

  • Tightly linked genes on the same chromosomes show higher combinations

  • Genes far apart on the same chromosomes show very few recombinations

  • Genes loosely linked on the same chromosomes show similar recombinations as the tightly linked ones

MCQ

Solution

Tightly linked genes on the same chromosomes show very few combinations

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Classical Genetics - Evaluation [Page 52]

APPEARS IN

Samacheer Kalvi Botany [English] Class 12 TN Board
Chapter 2 Classical Genetics
Evaluation | Q 9 | Page 52
Samacheer Kalvi Biology (Botany) [English] Class 12 TN Board
Chapter 2 Classical Genetics
Evaluation | Q 9 | Page 47

RELATED QUESTIONS

A homozygous Tall plant (T) bearing red coloured (R) flowers is crossed with a homozygous dwarf plant (t) bearing white flowers (r):
(1) Give the Genotype and Phenotype of the F2 generation.
(2) Give the possible combinations of the gametes that can be obtained from the F2 hybrid.
(3) Give the dihybrid ratio and the phenotype of the offsprings of the F2 generation when two plants of the F1 generation above are crossed.


Give Technical Term:

The ratio of offspring on F2 generation in a dihybrid cross.


Complete the following sentence with appropriate word:

_______ is the ratio of dihybrid cross.


The physical expression of a gene is called ______.


Under which conditions does the law of independent assortment hold good and why?


Name the seven contrasting traits of Mendel.


What is back cross?


Two linked genes a and b show 20% recombination. The individuals of a dihybrid cross between ++ /++ × ab/ab shall show gametes ______.


Mendel’s last law is ______.


A fruit fly exhibiting both male and female traits is ______.


Two genes ‘A’ and ‘B’ are linked. In a dihybrid cross involving these two genes, the F1 heterozygote is crossed with homozygous recessive parental type (aa bb). What would be the ratio of offspring in the next generation?


Given below is a dihybrid cross performed on Drosophila.

Which of the following conclusions can be drawn on the basis of this cross? When yellow bodied (y), white-eyed (w) Drosophila females were hybridized with brown bodied (y+), red-eyed males (w+) and F1 progenies were intercrossed, F2 generation would have shown the following ratio:


From the list given below, select the character which can be acquired but not inherited


Which one of the following genetic ratios will be obtained in a dihybrid test cross:


Independent assortment means:


The ratio of 9 : 3 : 3 : 1 is due to:


Mendel's law of independent assortment is based on F2 ratio of:


Describe the dihybrid cross upto F2 generation as conducted by Gregor Mendel using pure lines of Garden Pea for characters-seed shape and seed colour.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×