Question 1 :
<p>In a cross between individuals with genotypes Tt Rr, if the resulting number of offsprings is 16, then identify the number of genotypes with TtRr and TtRR amongst them.</p>

Question 2 :
Gregor Mendel worked on .....1..... for ....2..... years to extract the laws of Inheritance.

Question 3 :
In the given pedigree, indicate whether the shaded symbols indicate - <br><img style='object-fit:contain' src='https://storage.googleapis.com/teachmint/question_assets/NEET/5e6dba31ce79d451e7469a12' height='151' width='464' >

Question 4 :
Which of the following techniques were used by Messelson and Stahl to show that DNA replication is semi-conservative? <br>(i) Growing E. coli in defined synthetic medium. <br>(ii) Use of [³H]- thymidine and analysis of the products by autoradiography. <br>(iii) Use of heavy nitrogen and analysis of the products by equilibrium density gradient centrifugation.

Question 6 :
Morgan carried out several dihybrid crosses in fruit fly and found that

Question 7 :
In a test cross involving F1 dihybrid files, more parental- type offspring were produced than the recombinant-type offspring. This indicates

Question 9 :
Assertion (A) Histones is basic protein of major importance in pachaging of eukaryotic DNA and histone are comprise of chromatin forming bulk of eukaryotic chromosome. Reason (R) Histones are of five major types H 1 , H 2 A, H 2 B, H 3 and H 4 .

Question 10 :
Read the following statements and choose the incorrect statements. <br />(i) Nitrogenous base is linked to the pentose sugar through a N-glycosidic linkage. <br />(ii) Phosphate group is linked to 5'&ndash;OH of a nucleoside through phosphoester linkage. <br />(iii) Two nucleosides are linked through 3'&ndash;5'Nglycosidic linkage. <br />(iv) Negatively charged DNA is wrapped around positively charged histone octamer to form nucleosome. <br />(v) The chromatin that is more densely packed and stains dark is called euchromatin.

Question 12 :
<p> <font face="Cambria Math, serif">Sex linked traits are the traits determined by</font></p>

Question 13 :
The recombination frequency: <br />A. between two genes cannot exceed 50% <br />B. is inversely proportional to the distance between linked genes. <br />C. helps to determine the relative order of genes and distances between them on a chromosome. <br />D. is equal to map unit.<br />Which of the following statement is correct