391. Which of the following combination is an example of self replicating organelles?
A. Mitochondria Ribosomes
B. Mitochondria Nucleus
C. Mitochondria Chloroplast
D. Mitochondria Vacuole
392. Which of the following is an autosomal disorder______________?
A. Down’s syndrome
B. Klinifelter’s syndrome
C. Turner’s syndrome
D. Jacob’s syndrome
393. The place of centromere where spindle fibres get attached is_________?
A. Kinetochore
B. Kinochore
C. Centromere region
D. all of these
394. Embryonic induction is caused by part developing from_____________?
A. Endoderm
B. Ectoderm
C. Mesoderm
D. Extraembryonic layers
395. Sickle cell anemia is an example of_________________?
A. Chromosomal aberration
B. Insertion of gene
C. Deletion of gene
D. Point mutation
396. The type of plastids which help in pollination is_________?
A. Chromoplasts
B. Leucoplasts
C. Chloroplasts
D. All of these
397. Purines and pyrimidines are in equal ration in DNA. It was indicated by_______________?
A. F.Miescher
B. Chargaff
C. Watson & Crick
D. Harshay & Chase
398. Chlorophyll is a/an _____ molecule?
A. Inorganic
B. Cationic
C. Anionic
D. Organic
399. Ribonucleo-protein particles are the name of__________?
A. DNA
B. Nucleus
C. Eukaryotic ribosomes
D. RNA
400. Lock and Key model was proposed by______________?
A. Emil Fischer
B. Koshland
C. Robin Williams
D. Rudolph Virchow