MEDIUM
Earn 100

Define the term recombination frequency.

Important Questions on Chromosomal Basis of Inheritance

EASY
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles

Which of the following sentences are correct?

1. The offspring exhibit only parental combinations due to incomplete linkage

2. The linked genes exhibit some crossing over in complete linkage

3. The separation of two linked genes are possible in incomplete linkage

4. Crossing over is absent in complete linkage

 

MEDIUM
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles
Drosophila has four pairs of chromosomes. How many linkage groups does it have
MEDIUM
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles
Which of the following are the types of synapsis?
EASY
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles
When there is absence of crossing over, the genes are
MEDIUM
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles
Which of the following pairs is wrongly matched? 
MEDIUM
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles
How many linkage groups are present in human male?
EASY
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles
Accurate mapping of genes can be done by three point test cross because increases
HARD
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles

Fill in the blank with the correct option given in the bracket.

Due to incomplete linkage in maize, the ratio of parental and recombinants are _____.(7:1:1:7/1:2:7:1)

MEDIUM
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles
The number of linkage groups in a sperm and ovum of human is, respectively:
EASY
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles
The genes A and B are 10 cm apart on a chromosome. If an AB/ab hetero zygote is test crossed to ab/ab, how many of each progeny class would you assume out of 100 total progeny?
EASY
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles

_______ are located on homologous region of X and Y chromosomes.

EASY
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles
Crossing over, due to which there is genetic recombination in higher organisms is found in between which of the following?
MEDIUM
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles
Which of the following are the types of linkage?
EASY
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles
The genes A and B are 10 cm apart on a chromosome. If an AB/ab heterozygote is test crossed to ab/ab, how many of each progeny class would you assume out of 100 total progeny?
MEDIUM
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles
A test cross that uses three genes to determine the distance between the genes is called _____ test cross. (Write in words only)
EASY
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles
Select the correct statement from the ones given below with respect to dihybrid cross.
EASY
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles

Fill in the blank with the correct option given in the bracket.

The mechanism that causes a gene to move from one linkage group to another is called _____ (inversion/translocation).

MEDIUM
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles

Fill in the blank with the correct option given in the bracket.

Morgan coined the term _____ (crossing over/synapsis).

MEDIUM
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles
Which of the following sentences are correct?
EASY
Biology>Genetics>Chromosomal Basis of Inheritance>Linkage, Crossing Over and Multiple Alleles

_______are located on non-homologous region of X and Y chromosomes.