✓ Answer: B)
Unwinds the
DNA double
helix and
synthesizes
mRNA
RNA polymerase reads the DNA template strand and builds a complementary mRNA
strand.
Q5.
Which blood type is considered the universal donor?
A) Type A
B) Type B
C) Type AB
D) Type O negative
✓ Answer: D)
Type O negative
Type O negative lacks A, B, and Rh antigens, so it can be transfused to most recipients.
Q6.
The process by which plants convert sunlight into glucose is called:
A) Cellular respiration
B) Fermentation
C) Photosynthesis
D) Transpiration
✓ Answer: C)
Photosynthesis
Photosynthesis: 6CO■+ 6H■O + light → C■H■■O■+ 6O■, occurring in chloroplasts.
Q7.
Mendel's Law of Segregation states that:
A) Traits are blended in offspring
B) Alleles separate during gamete formation
C) Dominant alleles always mask recessive ones
D) Genes on the same chromosome assort independently
✓ Answer: B)
Alleles separate
during gamete
formation
Each gamete receives only one allele for each trait during meiosis.
Q8.
Which organelle contains digestive enzymes that break down waste materials?
A) Vacuole
B) Peroxisome
C) Lysosome
D) Endosome
