1- In sexual reproduction, sex cells contain number of chromosomes when compared to other cells of body.
A. Same
B. Half
C. Double
D. All of the above
View Answer
Answer : B. Half
Description
2- Kinetochore is a complex of associated with the centromere of a chromosome to which the microtubules of spindle attach.
A. DNA
B. Carbohydrates
C. Proteins
D. Nucleosomes
View Answer
Answer : C. Proteins
Description
3- Pituitary gland releases and hormone while ovaries produce and progesterone.
A. Follicle stimulating and luteinizing, estrogen
B. Estrogen and follicle stimulating, luteinizing
C. Luteinizing and estrogen, follicle stimulating
D. Follicle stimulating and estrogen, luteinizing
View Answer
Answer : A. Follicle stimulating and luteinizing, estrogen
Description
4- In higher animal's bodies, tissue fluid is isotonic as contrary to plants because in plant's cell:
A. Cell membrane creates resistance in water uptake
B. Plastids creates resistance in water uptake
C. Chlorophyll creates resistance in water uptake
D. Cell wall creates resistance in water uptake
View Answer
Answer : D. Cell wall creates resistance in water uptake
Description
5- Which one is NOT an involuntary function?
A. Breathing
B. Pumping of blood
C. Skeletal muscle movement
D. Blinking of eyes
View Answer
Answer : C. Skeletal muscle movement
Description
6- In gametogenesis, which resultant product is non-functional?
A. Ovum
B. Spermatogonia
C. Oogonia
D. Polar body
View Answer
Answer : C. Polar body
Description
7- The passageways of the respiratory system are lined by mucous secreting cells called ______.
A. Tracheal cells
B. Goblet cells
C. Surfactant cells
D. Pleural cells
View Answer
Answer : B. Goblet cells
Description
8- Virus can only survive and reproduce inside a ______.
A. Animal cell
B. Bacterial cell
C. Living cell
D. Non-Living cell
View Answer
Answer : C. Living cell
Description
9- In addition to smaller hind limb muscle mass, the mutant "mini muscle" gene exhibit lower heart rates during physical activity, larger kidneys and livers in mice. This is a very good example of ______.
A. Epistasis
B. Multiple alleles
C. Co-dominance
D. Pleiotropy
View Answer
Answer : D. Pleiotropy
Description
10- _____ is the stage of mitosis characterized by the physical separation of chromatids.
A. Interphase , Offspring
B. Telophase , F1 Chromatids
C. Metaphase , Homologous
D. Anaphase , Sister
View Answer
Answer : D. Anaphase , Sister
Description
11- A man who has type AB blood could not father a child with type ______ blood, because he would pass on either the ______ or the B allele to all of his offspring.
A. A , O
B. O , A
C. B , O
D. B , A
View Answer
Answer : B. O , A
Description
13- A cross between a black cat and a tan cat produces a tabby pattern (black and tan fur together). What percent of kittens would have tan fur if a tabby cat is crossed with a black cat?
A. 100%
B. 50%
C. 25%
D. 0%
View Answer
Answer : D. 0%
Description
14- Which factor decides what type of variation should be flourished and passed on in to the next generations?
A. Species
B. Population
C. Survival
D. Environment
View Answer
Answer : D. Environment
Description
15- Haemophilia is a sex linked ______ trait.
A. Dominant
B. Co-dominant
C. Pleitropic
D. Recessive
View Answer
Answer : D. Recessive
Description
16- Which of the following is a type of cell division that plays an important role in evolution?
A. Meiosis
B. Mitosis
C. Apoptosis
D. Amitosis
View Answer
Answer : A. Meiosis
Description
18- There existed two varieties of Female Fresh Water Mollusks in which some were streamlined and some had high bulge. Over the generations, Male Fresh Water Mollusks learned that high bulge favors more production of offspring. So they started preferring to mate with females having high bulge as compared to streamlined. Will this effect Hardy Weinberg equilibrium in the population ?
A. No, it will not affect Hardy Weinberg equilibrium
B. Yes, it will affect Hardy Weinberg equilibrium
C. It will help to balance equilibrium
D. Hardy Weinberg equilibrium doesn’t apply here
View Answer
Answer : B. Yes, it will affect Hardy Weinberg equilibrium
Description
19- A ______ is mostly a non-protein chemical compound that is required for the protein's biological activity.
A. Active site
B. Substrate
C. Cofactor
D. Enzyme
View Answer
Answer : C. Cofactor
Description
20- All of the following belong to same kingdom EXCEPT: