Question: Which part of the nervous system controls the activities of internal organs________?

• 1. Spinal cord
• 2. Cerebrum
• 3. Cerebellum
• 4. Medulla Oblongata

Question: When the Left Ventricle in the human heart contracts, the blood moves to the_________ ?

• 1. Brain
• 2. Pulmonary Artery
• 3. Aorta
• 4. Lungs

Question: The food conducting tissue of a plant is __________ ?

• 1. Phloem
• 2. Xylem
• 3. Parenchyma
• 4. Collenchyma

Question: The haploid condition is found in _________?

• 1. Amoeba
• 2. Bacteria
• 3. Ovum
• 4. Zygote

Question: The character which appears physically in an animal is __________?

• 1. Genotype
• 2. Phenotype
• 3. Heterotype
• 4. Morphozygous

Question: The frequency of a character is found to be increasing when __________?

• 1. It is dominant
• 2. It is recessive
• 3. It is adaptable
• 4. It is inheritable

Question: How many nucleosomes are found in helical coil of 30 nm chromatin fibre ____?

• 1. 10
• 2. 12
• 3. 06
• 4. 09

Question: If the number of chromosomes in most body cells of a mammal is 40, the cells in the seminiferous tubule will have___________?

• 1. 40 chromosomes
• 2. 20 chromosomes
• 3. 10 chromosomes
• 4. While some other will have 20

Question: A cistron is ________?

• 1. Structural of gene
• 2. Functional unit of RNA
• 3. Functional unit gene
• 4. Replication unit of gene

Question: Tjio and Levan’s contribution is very significant because they __________ ?

• 1. Identified barr bodies
• 2. Detected sex linkage
• 3. Pointed out mutational changes
• 4. Gave the number of human chromosomes