All about that BASE.
In RNA, THIS is the nitrogen base that replaces Thymine
URACIL (or just U)
These "jellyfish" like molecules are the primary component of the cell membrane.
PHospho-lipids
This term refers to the "role" or "job" that an organism occupies within its habitat.
Niche
Enzymes are often, but not always, identified by THIS three letter suffix.
-ASE
During the cell cycle, DNA replication occurs during this phase.
S-phase OR Interphase
She provided the crucial "Photo 51" image that revealed DNA's 3-dimensional structure.
Rosalind Franklin
The primary function of the plasma membrane is to maintain THIS internal cell balance.
Homeostasis
These are structures that are present in species but are generally smaller and nearly useless (but reflect an ancestry that had a different niche)
Vestigial structures
Generally, Enzymes function as catalysts. This means that they speed up reactions and reduce the amount of THIS needed to complete the reaction.
Activation Energy
This process in MEIOSIS I allows for the exchange of genetic material between homologous chromosomes.
Crossing Over
Common bonds between two water molecules, these weak attractions also hold together two complementary nitrogen bases.
Hydrogen Bonds
This "shipping" center of the cell functions by packaging proteins into vesicles for export.
Golgi
This process of selective change leads to males with exceptionally bright, bold, showy, or fancy traits.
Sexual Selection
Enzymes work best only in a narrow range of environmental conditions. THESE TWO CONDITIONS are most likely to impact the structure and activity of an enzyme.
Temperature and pH (acidity)
Produced in the centrioles, these protein filaments push and pull on chromosomes during cell division
spindle fibers
Made up of THREE mRNA bases, these "words" are translated by the ribosome to assemble amino acids.
Codons
Found in ALL cells, prokaryotic and eukaryotic, these are NON-MEMBRANE BOUND organelles that build proteins.
Ribosomes
This type of symbiosis may lead to co-evolution of reciprocally beneficial species.
Mutualism
Enzymes are SPECIFIC to their substrate. Their 3-dimensional shape fits their substrate like THIS common household interaction.
Lock and Key
Gametes
A mutation that involves the addition or deletion of a single nitrogen base within a gene. Often, causing a "re-framing" of all bases downstream.
Frameshift mutation
The interior of the mitochondria has a folded membrane that increases ATP production during THIS energy converting reaction.
Cellular Respiration
This term refers to the divergence of one species into two or more species due to reproductive isolation.
Speciation
Extreme heat might cause an enzyme to UNFOLD and lose its 3-dimensional shape. This unfolding is known by THIS term.
Denaturing
This term describes STEM CELLS because they have the ability to differentiate into many cell types.
Pluripotent