Part Four Flashcards
Transmission of characteristics from parents to offspring is called?
Heredity
When 2 alleles don’t blend but both show together like in A B blood type, it is called _________
Codominance
_______= An allele that is masked by the presence of another allele
Recessive
The appearance of an organism is it?
Phenotype
Another name for heterozygous?
Hybrid
_______= an allele that masks the presence of another allele
Dominant
Red and White flowers producing pink offspring is an example of?
Incomplete dominance
Change in population over time?
Evolution
Differences among individuals within a species?
Variation
What did Darwin notice in his travels that inspired his work?
Plants and animals were well adapted to their environments.
What causes variation among individuals?
Mutations
How often do beneficial mutations occur?
Very rarely
Structures that develop from the same embryonic tissues but have different mature forms?
Homologous structures
Organ with little or no function?
Vestigial organ
Ability of an organism to survive and reproduce in an specific environment?
Fitness
Inherited characteristic that increase and organisms chances for survival?
Adaptation
Preserves remains of an ancient organism?
Fossil
Measuring Liam beans and finding beans come in different sizes is an example of?
Natural variation
The practice of breeding dogs to produce offspring with specific traits is an example of?
Artificial selection
Changes in the allele frequency in a small population that are due to random chance and don’t follow the laws of probability?
Genetic drift
What is genetic variation?
All individuals are different
The theory that individuals best adapted to their environment survive and reproduce is called?
Natural selection
Many species look very similar throughout their developmental stages and share structures such as gill slits?
Embryological evidence
