Quiz # 1 in Science 9

Which of the following organs is considered as the common passageway of food and air?

• Bronchi

• Trachea

• Pharynx

• Larynx

Which of the following IS NOT a function of the nostrils and nasal cavity?

• It filters the air

• It is for gas exchange

• It humidifies the air

• It moistens the air

Which of the following is a formed element of the blood that is used for clotting?

• RBC

• WBC

• Platelets

• Plasma

Which of the following blood vessels contain valves?

• Arteries

• Veins

• Capillaries

• All of these

Which of the following type of non-Mendelian patterns of inheritance results in the formation of an Erminette chicken?

• Incomplete dominance

• Codominance

• Multiple alleles

• Sex-linked traits

Which of the following is considered as the recessive blood type?

• A

• B

• AB

• O

Which of the following is the correct base pair of cytosine?

• Adenine

• Cytosine

• Guanine

• Thymine

Which of the following IS NOT an example of sex-limited traits?

• Lactation in females

• Baldness in males

• Comb in roosters

• Horn in rams

Which of the following serves as the site for gas exchange?

• Alveoli

• Capillaries

• Lungs

• Bronchi

Who proposed the law on complementary base pairs?

• Maurice Wilkins

• Erwin Chargaff

• Rosalind Franklin

• James Watson