genetics
what is mitosis?
a process that allows a cell to divide into two identical daughter cells
what is an example of letters that define heterozygous?
Aa
what does it mean to evolve?
to change or develop slowly often into a better, more complex, or more advanced state
what bad things can happen if you consume artificial foods?
obesity, diseases, health disorders
what is the only type of rock that make up fossils?
sedimentary rock
what is the first phase of mitosis?
prophase
what letters define homozygous?
AA or aa
why do birds migrate?
Birds migrate to move from areas of low or decreasing resources to areas of high or increasing resources- such as food or weather.
what side effects does a pug have from human selection? (for our own desires)
breathing and eye problems
what makes up a fossil?
preserved remains of plants and animals
what cells do mitosis occur in?
somatic cells
how do traits skip a generation?
this happens when a trait is recessive and isn't expressed in one generation but can show up in the next if both parents carry that gene.
what is the main difference between genetic drift and natural selection?
Genetic drift is random, while natural selection is based on changes that something goes though for the better
what animal was the first ever clone
dolly the sheep
why do fossils not decompose?
As its body decomposes all the flesh wears away and only the hard parts, like bones, teeth, and horns, are left behind.
what organelle do plants have, that animals/humans do not.
chloroplasts
If both parents have heterozygous Brown eyes, what is the chance that you will have blue eyes?
25%
how does genetic drift affect the genetic diversity of a small population?
Genetic drift can cause random changes in allele frequencies which can reduce genetic diversity especially in small populations.
what is the definition of artificial selection?
the process where humans intentionally select and breed organisms with desired traits, leading to changes in populations over time
how do fossils provide evidence of continental drift?
The same type of plant and animal fossils are found on continents that are now widely separated
What's the difference between a genotype and a phenotype?
Genotype is the genetic makeup oven organism while phenotype is the observable traits.
if my grandpa got cancer, how come I don't have it?
Most cancers are caused by genetic changes that happen mostly by chance and are not inherited.
What role do mutations play in the process of microevolution?
Mutations introduce new genetic by altering DNA sequences which can lead to new traits and contribute to microevolution if they are successful and passed on a future generations.
what are some examples of the only foods that have Gmos?
corn, canola, soybeans, sugar beets, potatoes, papayas, and squash
what is the difference between fossils and artifacts?
fossils are preserved remains or traces of ancient organisms, while Artifacts are man-made objects from past cultures.