Biology Questions

Q:

Limbs of frog, lizard, bird and human are example of ______ organs.

A) Homogenous B) Heterogeneous
C) Analogous D) Homologous
 
Answer & Explanation Answer: D) Homologous

Explanation:
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Q:

Metastasis is the process by which _________

A) Cell divide rapidly under the influence of drugs B) Cancer cell spread through the blood or lymphatic system to other site or organs
C) The Chromosome in cell nuclei are attached to the soindle before moving to the anaphase poles D) Cancer cells are successfully inhibited to divide any further
 
Answer & Explanation Answer: B) Cancer cell spread through the blood or lymphatic system to other site or organs

Explanation:
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Q:

Hypnosis is sometimes used to treat anxiety disorders.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

Hypnosis is a state of human consciousness involving focused attention, reduced peripheral awareness, and an enhanced capacity to respond to suggestion.

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1 2108
Q:

Which parts of the heart receive blood from the lungs?

A) Right ventricle B) Left Atrium
C) Left Ventricle D) Right ATrium
 
Answer & Explanation Answer: B) Left Atrium

Explanation:

The left atrium is the upper left chamber of the heart that receives blood from the pulmonary veins.

 

which_parts_of_the_heart_receive_blood_from_the_lungs1561113684.jpg image

 

The heart is responsible for circulating blood throughout the body. The heart is divided into four chambers. The upper chamber is known as the atrium while the lower chamber is referred to as the ventricle.

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5 2103
Q:

What is the unit of heredity?

A) cell B) blood
C) gene D) All of the above
 
Answer & Explanation Answer: C) gene

Explanation:

Genes are units of heredity.

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Q:

Where does protein synthesis take place in a cell?

A) Ribosomes B) Mitochondria
C) Cytoplasm D) Nucleus
 
Answer & Explanation Answer: A) Ribosomes

Explanation:

The protein synthesis take place in a cell outside the nucleus in the structures called ribosomes. Ribosomes link amino acids together in the order specified by messenger RNA molecules.

Where_does_protein_synthesis_take_place_in_a_cell1563603813.png image

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Q:

What do genes code for?

A) Ptoteins B) DNA
C) RNA D) None
 
Answer & Explanation Answer: A) Ptoteins

Explanation:

The genome of an organism is inscribed in DNA, or in some viruses RNA. The portion of the genome that codes for a protein or an RNA is referred to as a gene. Those genes that code for proteins are composed of tri-nucleotide units called codons, each coding for a single amino acid.

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Q:

Tubes that bifurcate from the windpipe

A) Bronchi B) pleura
C) Apex D) Adenoids
 
Answer & Explanation Answer: A) Bronchi

Explanation:

Tubes that bifurcate from the windpipe are called Bronchi.

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