Biology Mcqs

Which of the following is an autosomal disorder______________?

A. Down’s syndrome
B. Klinifelter’s syndrome
C. Turner’s syndrome
D. Jacob’s syndrome

Which of the following combination is an example of self replicating organelles?

A. Mitochondria Ribosomes
B. Mitochondria Nucleus
C. Mitochondria Chloroplast
D. Mitochondria Vacuole

Okazaki fragments are connected together through action of_________________?

A. Primase
B. Polymerase
C. Helicase
D. Ligase

Chlorophyll molecule contrains __________ as central metal ion.

A. Fe2+
B. Mg2+
C. Zn2+
D. Cu2+

Yellow cytoplasm in ascidian gives rise to______________?

A. Epidermis
B. Muscle cells
C. Gut
D. Notochord

Number of nuclear pores/nucleus in an RBC are_________?

A. 1?3
B. 3?4
C. 10000
D. 30000

Test cross is used to find_____________?

A. Trait
B. Phenotype
C. Genotype
D. Ratios

An example of codominance is______________?

A. A’ blood group
B. B’ blood group
C. O’ blood group
D. AB’ blood group

On which of the following component of chloroplast chlorophyll is arranged?

A. Cell membrane
B. Matrix
C. Thylakoids
D. Stroma