UNICAL Biology 2020/2021 Past Questions

Practice each question, then open it to see the full details.

A dry fruit which can break into several parts each containing one seed is a

A.caryopsis
B.aggregate fruit
C.legume
D.schizocarp

An example of Vascular tissues is

A.Trichome
B.Xylem
C.Stomata
D.Epidermis

Which of the following is a major factor in variation among organisms?

A.Inbreeding
B.Backcrossing
C.Test crossing
D.Sexual reproduction

An association between two organisms where both members benefit is known as

A.symbiosis.
B.commensalism.
C.ammensalism.
D.mutualism.

Which of the animal below is poikilothemic?

A.Toad
B.Chicken
C.Bat
D.Lion

Which of the following diseases can be caused by a bacterium?

A.ringworm
B.poliomyelitis
C.malaria
D.syphilis

In vegetative propagation, which of the following requires part of another plant to develop?

A.scion
B.bulb
C.rhizome
D.sucker

The first experiment of Mendel considering the inheritance of a single trait is called________.

A.Hybrid cross
B.Monohybrid cross
C.Polyhybrid cross
D.Dihybrid cross

How many nuclei are found in a pollen tube during fertilization?

A.2
B.3
C.5
D.6

The inner ear has two types of coiled structure called cochlea which

A.receives sound impulses
B.has sensor cell which carry impulses to the spinal cord
C.connects to the eusta chain tube
D.possess cells sensitive to balance