If a pollen grain fails to generate two sperm cells, what is the most likely result of pollination?
A. The seeds would lack either embryos or endosperm, and so would be nonviable.
B. The resulting progeny would be haploid.
C. The endosperm would be smaller.
D. Half the seeds would develop fine, but the other half would die.
Answer: A
You might also like to view...
In a lichen, the mycobiont receives
a. nutrients. b. protection from herbivory. c. aid in sexual reproduction. d. enhanced dispersal of offspring. e. shelter from radiation and desiccation.
Xylem and phloem are types of
a. ground tissue. b. protoderm. c. vascular tissue. d. meristem. e. dermal tissue.
Which disorder can sometimes be managed with diet and exercise?
A) type 1 diabetes B) type 2 diabetes C) type 3 diabetes D) hypoglycemia
In India, golden jackals that have been expelled from their pack have been known to attach themselves to a particular tiger, trailing it at a safe distance in order to feed on the big cat's kills. What type of relationship exists between the jackal and the tiger?
A. Commensalism B. Parasitism C. Competition D. Mutualism E. Predation