At what stage does the diploid zygote form?
a. When the sperm nucleus and the egg nucleus fuse
b. When the female cone begins to bud from the tree
c. When the seeds drop from the tree
d. When the pollen tube begins to grow
Answer: a. When the sperm nucleus and the egg nucleus fuse
You might also like to view...
What type of bonding is likely to occur between two water molecules or strands of DNA?
A. covalent. B. ionic. C. hydrogen. D. both hydrogen and covalent. E. both hydrogen and ionic.
Explain how a cell isolated from the pancreas would be the same as a muscle cell. How would the two
cell types be different?
What will be an ideal response?A diagnosis of tuberculosis involves a/an ________.
A. tuberculin skin test B. sputum culture C. chest X ray D. acid-fast stain of sputum E. All of the choices are correct.
What characterizes a bacterial cell that can undergo transformation?
What will be an ideal response?