Involves gametes

Leads to variation

Genetically identical offspring

Involves fertilization

Seasonal hormonal ovarian change

Conditional hormonal ovarian change

Periodic hormonal ovarian change

Habitual hormonal ovarian change

Occur outside the body

Occur inside the body

Followed by meiosis

None of these

Formation of sperms from small clumps of cells

Regeneration of tail in a lizard

Replacement of several arm in starfish

Replacement of limb in salamander

Diploid megaspore mother cell undergoes mitosis to form the embryo sac, and a diploid male gamete fuses with a haploid central cell.

Haploid megaspore mother cell undergoes meiosis to form the embryo sac, and a diploid male gamete fuses with a diploid central cell.

Triploid megaspore mother cell undergoes mitosis to form the embryo sac, and a haploid male gamete fuses with a diploid central cell.

Diploid megaspore mother cell undergoes meiosis to form the embryo sac, and two haploid male gametes fuse with a haploid central cell.

Vegetative cells

gametes

propagules

clones

Hybridization

Clonal selection

Mass selection

Pure line selection

$2n,2n,n,n,n,2n$

$2n,n,2n,2n,n,2n$

$n,2n,2n,n,2n,n$

$2n,2n,n,n,n,n$

Honeybees

Rock lizards

Turkey birds

All of these

I→III→II

II→I→III

III→II→I

I→II→III

Formation of a polar body

Differentiation of spermatids into spermatozoa

Meiotic divisions

Release of spermatozoa into the seminiferous tubules