Stages of Early Development (Order and General Features of Each)
The early stages of embryonic development, such as fertilization, cleavage, blastula formation, gastrulation, and neurulation,…
AAMC Outline
Reproductive sequence: fertilization; implantation; development; birth
The reproductive sequence of fertilization, implantation, development, and birth is the activity in which an…
General function
The general functions of the respiratory system are the exchange of gases, thermoregulation, and filtering…
Ovum and sperm
Ovum (female gamete) and sperm (male gamete) are necessary for the reproduction process but they…
Gametogenesis by meiosis
Gametogenesis, the production of sperm and eggs, takes place through the process of meiosis. During…
Synapsis or crossing-over mechanism for increasing genetic diversity
Synapsis and crossing-over mechanisms increase genetic diversity by recombining combinations of gene alleles on a…
Genetic drift
Genetic drift is the change in allele frequencies of a population due to random chance…
Mutation
A mutation is a change that occurs in a DNA sequence, either due to mistakes…
Nucleotides and Nucleic Acids: Other functions
Nucleotides and nucleic acids have a wide range of functions, from simple building blocks in…
Nucleotides and Nucleic Acids: Chemistry
DNA is a nucleic acid that contains monomer nucleotide units formed into a polymer and…