Heterospory occurs in
a. some seedless vascular plants
b. bryophytes
c. gymnosperms and angiosperms
d. a and c
e. a, b, and c
Ans: d. a and c
You might also like to view...
How do mammals respond to cold stress?
What will be an ideal response?
Which of the following is not a reason why Neurospora is an ideal organism to study the effects of
genetic mutations? a. Neurospora is easy to grow. b. Neurospora grows as a haploid organism. c. Neurospora manufactures all its necessary molecules when grown on a minimal medium. d. A mutant Neurospora strain that cannot make a particular amino acid can still grow if that amino acid is added to the growth medium. e. Neurospora contains homologous chromosomes that are easily viewed with a light microscope
The outer membrane of the nuclear envelope is continuous with the membrane of the ____ and is usually covered with
attached ribosomes. a. nucleolus b. cell wall c. chromatin d. plasma membrane e. endoplasmic reticulum
What does chromatin consist of?
a. only RNA b. only DNA c. both DNA and RNA d. DNA and associated proteins