genetics
what represents homozygous dominant?
AA or just two capital letters.
what is a chromosome?
form of DNA inside the cell/nucleus
what does it mean to evolve
develop gradually, especially from a simple to a more complex form.
what does GMO stand for?
genetically modified organism
in undisturbed rock layers, the oldest layers are found at the bottom and the youngest at the top
what is the definition of gene.
a segment of DNA that has information for a trait. it contains instructions for making specific proteins.
if blue eyes are homozygous dominant what would represent that?
BB
what is the main difference between genetic drift and natural selection.
genetic drift is a random process that changes allele frequencies due to chance, while natural selection favors traits that enhance survival and reproduction, leading to directional changes in allele frequencies
what is gene therapy?
a medical approach that aims to treat or prevent diseases by modifying a person's genes
what is a index fossil?
a fossil that is useful for dating and correlating the strata in which it is found.
what type of cell does mitosis occur in?
somatic cells.
what cells are produced by mitosis.
daughter cells
what is migration?
seasonal movement of animals from one region to another.
what is cloning?
the process of creating a genetically identical copy of a cell, tissue, or entire organism, with the copy, or "clone", having the same DNA as the original
what is intrusion?
the act of intruding or the state of being intruded
what does "Rr" represent.
Heterozygous.
if a child's dad his homozygous recessive to green eyes and there mom is heterozygous to green eyes what is the percent that the child will have green eyes.
50%
what is a mutation.
a permanent change in an organism's DNA sequence, which can be caused by errors during cell division, exposure to environmental factors, or spontaneous events
what is selective breeding?
the process where humans choose which organisms (plants or animals) with desired traits to breed, aiming to produce offspring with those specific characteristics
whats extrusion?
a manufacturing process where a material, often a metal or plastic, is forced through a shaped opening (die) to create a product with a consistent cross-section
what type of cell does meiosis occur in?
germ cell
what is mitosis?
a type of cell division that results in two identical daughter cells from a single parent cell
what is structural behavioral adaptations?
actions or behaviors that help an organism survive, such as migration or hibernation
what is artificial selection?
the process where humans intentionally select organisms with desired traits and breed them to enhance and perpetuate those traits in future generations
absolute age of rocks and fossils.
determines their actual age in years,