Year : 
2019
Title : 
Biology
Exam : 
JAMB Exam

Paper 1 | Objectives

51 - 60 of 80 Questions

# Question Ans
51.

The movement of blood between the heart and all other parts of the body beside the lungs is

A. Double circulatory system

B. Pulmonary system

C. Single circulation

D. Systemic circulation

Detailed Solution

Systemic circulation involves the movement of blood between the heart and all other parts of the body besides the lungs.
There is an explanation video available below.
52.

The change in the genetic make up of an organism resulting in an inheritable characteristics which is new is

A. Mutation

B. Locus

C. Hybrid

D. Diploid

Detailed Solution

Mutation involves the changes in the genes of an organism due to some factors resulting in a new character that can be inherited.
There is an explanation video available below.
53.

The organic molecule(s) present in the nucleus is/are

A. DNA

B. DNA and ATP

C. ATP and RNA

D. RNA

Detailed Solution

DNA is located in the nucleus of cells. It is responsible for the storage of organisms's hereditary traits and helps in directing the day to day metabolic activities of each cell in the organic.
There is an explanation video available below.
54.

Albinism is an expression of trait controlled by

A. Chromosomes

B. Recessive genes

C. Dominant genes

D. Mutation

Detailed Solution

Albinism is the condition in which the skin of an animal is non-pigmented because of lack of the pigment called Melanin. It is controlled by Recessive genes.
There is an explanation video available below.
55.

The male sex cells also called gametes are produced in the testes by a process called

A. Gametogenesis

B. Implantation

C. Spermatogenesis

D. Spermatozoa

Detailed Solution

Spermatogenesis is the process whereby male sex cells or gametes (sperms) are produced in the testis.
There is an explanation video available below.
56.

Which of the following describes an example of fertilization in higher organisms

A. Fusion of sperm and egg nuclei

B. Pollen grain landing on a sticky stigma

C. Ejaculation of the egg and pollen grain

D. Ejaculation of sperm into the female body

Detailed Solution

Fusion of sperm and egg nuclei is an example of fertilization in mammals.
There is an explanation video available below.
57.

The part labeled III in the above diagram is

A. Root

B. Gills

C. Hyphae

D. Rhizoids

Detailed Solution

Hyphae in a mushroom is a vegetative body parts made up of time and delicate thread containing nuclei
There is an explanation video available below.
58.

The organism above can be found in

A. Arid land

B. Secluded environments

C. Aquatic habitation

D. Moist environments

Detailed Solution

It is found in moist environment because of its adaptive features.
There is an explanation video available below.
59.

The possession of chloroplast in Euglena virids enables it to

A. Store starch

B. Carry out photosynthesis

C. Reproduce

D. Respond to light

Detailed Solution

Euglena vivids possesses chloroplast (plants feature) in order for it to carry out photosynthesis
There is an explanation video available below.
60.

Viruses are pathogens of the following diseases except

A. Tuberculosis

B. Measles

C. Small pox

D. Poliomyelitis

Detailed Solution

Tuberculosis is classified under diseases causes by bacteria not virus.
There is an explanation video available below.
51.

The movement of blood between the heart and all other parts of the body beside the lungs is

A. Double circulatory system

B. Pulmonary system

C. Single circulation

D. Systemic circulation

Detailed Solution

Systemic circulation involves the movement of blood between the heart and all other parts of the body besides the lungs.
There is an explanation video available below.
52.

The change in the genetic make up of an organism resulting in an inheritable characteristics which is new is

A. Mutation

B. Locus

C. Hybrid

D. Diploid

Detailed Solution

Mutation involves the changes in the genes of an organism due to some factors resulting in a new character that can be inherited.
There is an explanation video available below.
53.

The organic molecule(s) present in the nucleus is/are

A. DNA

B. DNA and ATP

C. ATP and RNA

D. RNA

Detailed Solution

DNA is located in the nucleus of cells. It is responsible for the storage of organisms's hereditary traits and helps in directing the day to day metabolic activities of each cell in the organic.
There is an explanation video available below.
54.

Albinism is an expression of trait controlled by

A. Chromosomes

B. Recessive genes

C. Dominant genes

D. Mutation

Detailed Solution

Albinism is the condition in which the skin of an animal is non-pigmented because of lack of the pigment called Melanin. It is controlled by Recessive genes.
There is an explanation video available below.
55.

The male sex cells also called gametes are produced in the testes by a process called

A. Gametogenesis

B. Implantation

C. Spermatogenesis

D. Spermatozoa

Detailed Solution

Spermatogenesis is the process whereby male sex cells or gametes (sperms) are produced in the testis.
There is an explanation video available below.
56.

Which of the following describes an example of fertilization in higher organisms

A. Fusion of sperm and egg nuclei

B. Pollen grain landing on a sticky stigma

C. Ejaculation of the egg and pollen grain

D. Ejaculation of sperm into the female body

Detailed Solution

Fusion of sperm and egg nuclei is an example of fertilization in mammals.
There is an explanation video available below.
57.

The part labeled III in the above diagram is

A. Root

B. Gills

C. Hyphae

D. Rhizoids

Detailed Solution

Hyphae in a mushroom is a vegetative body parts made up of time and delicate thread containing nuclei
There is an explanation video available below.
58.

The organism above can be found in

A. Arid land

B. Secluded environments

C. Aquatic habitation

D. Moist environments

Detailed Solution

It is found in moist environment because of its adaptive features.
There is an explanation video available below.
59.

The possession of chloroplast in Euglena virids enables it to

A. Store starch

B. Carry out photosynthesis

C. Reproduce

D. Respond to light

Detailed Solution

Euglena vivids possesses chloroplast (plants feature) in order for it to carry out photosynthesis
There is an explanation video available below.
60.

Viruses are pathogens of the following diseases except

A. Tuberculosis

B. Measles

C. Small pox

D. Poliomyelitis

Detailed Solution

Tuberculosis is classified under diseases causes by bacteria not virus.
There is an explanation video available below.