In a seed plant, the pollen grains are actually tiny

A. male gametophytes.
B. eggs.
C. seeds.
D. female gametophytes.


Answer: A

Biology & Microbiology

You might also like to view...

Which of the following statements about the life cycle of a crab is true? a. Most species of crab are hermaphrodites

b. A female crab hides fertilized eggs under a rock in a sheltered spot and guards them until they hatch. c. A crab larva will molt as it grows. d. Young crabs look like miniature adults as soon as they hatch from their eggs.

Biology & Microbiology

Amniocentesis is _____.

A. a surgical means of repairing deformities B. a form of chemotherapy that modifies or inhibits gene expression or the function of gene products C. used in prenatal diagnosis to detect chromosomal mutations and metabolic disorders in embryos D. a form of gene replacement therapy E. commonly performed on newborns

Biology & Microbiology

Anticodons pair with

a. codons on DNA b. codons on mRNA. c. codons on tRNA d. codons on rRNA e. messenger RNA and ribosomal RNA.

Biology & Microbiology

Biological growth involves an increase in:

a. the number of cells. b. the size of individual cells. c. the number of gene types in a cell. d. both the number and size of cells. e. both the number of cells and the number of gene types in a cell.

Biology & Microbiology