Introduction to a cell
What is Biology?
The study of life
What does DNA stand for?
deoxyribonucleic acid.
What is the cell cycles?
A series of steps by which living cells grow, duplicate their DNA, and divide into two identical daughter cells.Occurs in somatic cells
What is genetics
The study of genes.How they are passed down.How they interact with the environment.
What is evolution?
The process by which living things change over time, resulting in new species, traits, and genes.
What are the 7 Characteristics of living things?
Made of Cells, Able to Reproduce, Growth and Development, Metabolism, Respond to Stimuli , Maintain Homeostasis ,Adapt and Evolve
What is inside of a Nucleotide?
Sugar (deoxyribose), Phosphate Group,Nitrogenous base (adenine, thymine, guanine, or cytosine).
What stage do cells spend the most of their time?
Interphase
What is an allele?
a form of a gene
What is a Natural selection?
A process that explains how species change over time in response to environmental changes or competition between organisms. Survival of the fittest.
What is the difference between Eukaryotic and prokaryotic?
Eukaryotic has a nucleus and Prokaryotic not nucleus.
What are the Nitrogenous Base Pairing?
Adenine always pairs with Thymine, Guanine always pairs with Cytosine
What are the steps of Mitosis.
Prophase,Metaphase,Anaphase,Telophase
What is the difference between Homozygous and Heterozygous.
Homozygous: Inheriting identical versions of a gene from both parents. SAME Heterozygous is different
What are the four Principles of Natural selection?
Variation ,overproduction, adaption, Descent with Modification.
What is the nucleus?
A large membrane-enclosed structure that contains the cell's genetic material in the form of DNA. Controls many of the cells activities.
How many Chromosomes does a human have?
46 chromosomes
What are chromosome counted by.
centromere
What is a pedigree?
A chart that visually diagrams the inheritance of a trait or health condition through generations of a family.
What are the 3 Empirical Evidence?
Molecular,Anatomical,Developmental Similarities
What is a cell?
the basic units of life
DNA replication steps
Replication Fork Formation, Primer Binding,Elongation,Termination
What phase do cytoplasm split up?
Cytokinesis
What would be a shaded square be in a pedigree?
A male that expresses the trait.
What is the difference between cladogram and phylogentic tree?
A cladogram shows relationships, while a phylogenetic tree shows relationships and evolutionary change over time.