13. A typical pollen grain of a seed plant might contain
a male and female gametophytes.
b. a microspore mother cell.
C a generative cell and a tube cell.
d a mėgaspore and two sperm cells.

What is the role of dna ligase in the elongation of the lagging strand during dna replication?

How would you expect the mrna codons that code for the amino acids that make up hemoglobin to compare between humans

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.