Cell Biology
By definition, prokaryotic cells do not possess this.
What is a nucleus?
T or F: For X-linked dominant traits, all daughters of an affected male will inherit the trait.
True
This is the process whereby organisms better adapted to their environment tend to survive and produce more offspring; the process by which species evolve over time.
What is natural selection?
Groups of cells that are similar in structure and perform a common or related function form this.
What is tissue?
Name for a fertilized egg.
What is a zygote?
T or F: the mitotic spindle helps segregate the chromosomes to the two daughter cells
True
This is the name for virus-mediated DNA recombination.
What is transduction?
This is the term for a relatively unspecialized cell that can reproduce itself indefinitely and differentiate into specialized cells of one or more types
What is a stem cell?
This type of feedback loop reduces the change in physiological processes.
What is a negative feedback loop?
Name for the life cycle of some plants and algae.
What is alternation of generations?
T or F: Most of the peptide bonds are oriented in the cis-configuration.
False
Three mechanisms that contribute to genetic variation.
What is independent assortment, crossing over, and random fertilization?
What makes a virus nonliving?
-no organelles to take in nutrients or use energy
-cannot make proteins
-cannot replicate on their own
Cells in the human body can be assembled into these four tissue types.
What is connective, epithelial, muscle, and nervous tissue?
Protein complexes that allow sister chromatids of a single chromosome to stay together through Meiosis I.
What are cohesins?
This type of junction involves a connection to the actin cytoskeleton.
What is a gap junction?
Loss of genetic variation when a new colony is established by a small number of individuals from a larger population
Founder Effect
All animals with bilateral symmetry have this many germ layer(s).
What is three?
This muscle extends the leg at the knee joint and is innervated by the femoral nerve (L3 and L4)
Quadriceps Femoris (Quads)
This is the term for cancer spreading into malignant growths outside of it's primary site.
What is metastasis?
This term is used to describe a thin- sheet like meshwork of extracellular matrix components that can be found in epithelial cells.
What is a Basal Lamina?
This condition exists when an organism gains or loses one or more chromosomes but not a complete haploid set.
What is Aneuploidy?
Prokaryotes found inhabiting the Great Salt Lake would be this kind of organism.
The heart lies in this cavity.
What is pericardial (or thoracic)?
What occurs in crossing over and what is the region on the tetrad called?
Nonsister chromatids of homologous chromosomes exchange DNA segments; X-shaped chiasmata