Random Biology
The phase where DNA replication occurs
Synthesis (s phase)
a movement of ions and other atomic or molecular substances across cell membranes without need of energy input
What is passive transport or diffusion?
____________is the splitting of the cytoplasm in cell division.
cytokinesis
Crossing over occurs during this phase.
What is prophase 1 of meiosis?
Any inherited trait that increases an organism's chance of survival is known as this.
The concept that organisms who are the best suited to their environment will survive and reproduce.
What is natural selection?
These simple molecules are the building blocks of proteins.
What are amino acids?
These organisms have the most available energy in a food pyramid.
What are producers or autotrophs?
These are the waste products of cellular respiration.
What is carbon dioxide and water?
The three organelles contained in a plant cell but not an animal cell
What is Cell wall, central vacuole, chloroplast?
Present in ALL cells
What are cytoplasm, DNA, and ribosomes?
The formula for photosynthesis.
What is CO2 + H2O —> C6H12O6 + O2
These fats only contain single bonds.
What are saturated fats?
If the producers contain 10,000 Kcal how much energy do the secondary consumers receive
What is 100kcal?
Structures that serve similar functions in organisms that are not evolutionarily related.
What are analogous structures?
This process produces one functional cell and three polar bodies, each genetically unique, in females.
What is Oogenesis?
This hormone is responsible for a spike in LH in a positive feedback loop.
This process is performed by every living organism and occurs in both anaerobic and aerobic respiration.
What is glycolysis?
The legs of crocodiles and mice have similar bone structures and develop in a similar way. What type of structures are the leg bones?
What are homologous structures?
The functional units of membranes that allow them to be selectively permeable.
What are proteins and phospholipids?
This error in meiosis results in atypical chromosome numbers.
What is nondisjunction?
When both alleles are present and dominant, and produce an intermediate phenotype.
What is incomplete dominance?
This single amino acid difference is the cause of sickle cell anemia.
What is glu --> val?
Sickle cell anemia is a recessive disease. If you cross two parents with the alleles Aa x Aa, what are the chances their children will have sickle cell anemia?
25%