Genetics
how many stages of cell division is there in mitosis and how many divisions of cell division is there in mitosis
1 stage 4 divisions
what is a dominant trait
when you have one or more UPPER CASE letter
what is a genetic drift
refers to the random fluctuations in the frequency of alleles inside a population over successive generations. Unlike natural selection, which operates based totally on the differential health of individuals, genetic drift is pushed with the aid of hazard events.
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
what are fossils
the preserved remains, impressions, or traces of ancient organisms, typically older than 10,000 years, found in rocks or sediments
how many chromosomes do you get from each parent
23
how is genotype different from phenotype
genotype is the genes of an organism and phenotype is the physical appearance of a trait in an organism
what is the difference between a structural adaptation and a behavioral adaptation
one is act one is features
what is cloning
Cloning is the process of producing individuals with identical or virtually identical DNA, either naturally (asexual reproduction) or artificially (biotechnology).
what is a type of fossils
bones
what is the biggest part of the animal cell
The nucleus
define heterozygous
when it has 2 different alleles (Tt)
what is migration
when one animal leaves its environment to move to a new environment
what is a advantage of gmos
Can increase farmer yields (amounts) by:-being insect resistant -being weed resistant - using less chemicals (herbicides/insecticides ) -Soil is preserved- Drought resistant]-increase consumer purchasing due to taste/cost-increase nutrition -faster growth
name the 2 fossils that are older that the gastropod
crinoid and ammonite
what is a gene
A SEGMENT OF DNA THAT HAS INFORMATION FOR A TRAIT. IT CONTAINS INSTRUCTIONS FOR MAKING SPECIFIC PROTEINS.
define homozygous
when it has 2 of the same exact trait (Tt or TT)
what is a behavior adaptation
how an animal acts in its enviroment
who started gene therapy
theodore friedmann and Richard roblin
what is the oldest type rock
ammonite
what are chromosomes
FORM DNA TAKES INSIDE THE CELL/NUCLEUS WHEN PREPARING TO DIVIDE. HUMANS HAVE 46 CHROMOSOMES (23 FROM EACH PARENT)
is this a Dominant or Recessive trait (Tt)
Dominant has one dominant one recessive and it only needs one dominant trait to be full dominant
what is a structural adaptation
physical traits that allow animals to survive in the environment live in
what is selective breeding
Is the process of changing a population over time by selecting for desired genetic traits. Plant breeders and researchers use molecular markers, which are identified DNA, to identify these traits without altering the genes in the organisms.
what is the newest layer of fossils