Evolution
An adaptation that allows an animal to blend in to its environment
Camouflage
the study of heredity
Genetics
DNA segments that serve as the key functional units in hereditary transmission
Genes
nds up with 4 daughter cells.
A. Mitosis
B. Meiosis
C. Both
Meiosis
A _____________ is a trait in a population that increases the chances of survival.
A. Mutation
B. Adaptation
C. Variation
Adaptation
_________________is the mechanism for populations of living organisms adapt and change to their environment.
A. Natural Selection C. Mutations
B. Fitness
Natural selection
Different forms of a gene
Allele
the production of offspring
reproduction
Original parent cell divides twice.
A. Mitosis
B. Meiosis
C. Both
Meiosis
structures that are no longer needed in an organism
what are vestigial structures?
Structures that have the same function, but are not evidence of a common ancestor are called:
A. Homologous structures
B. Analogous Structures
C. Mutations
Analogous structures
traits that typically do not show in a person unless both genes for the trait are inherited
recessive traits
Those "nonbiological" factors that are involved in a person's surroundings such as the nature of the person's parents, the person's friends, and the person's behavioral choices.
Environmental Factors
Involves all body cells.
A. Mitosis
B. Meiosis
C. Both
Mitosis
Physical expressions of genetic trait
Genotypical expressions of genetic trait
1. phenotype
2. genotype
These types of structures are similar with very different functions.
Homologous Structures
Traits that always show in a person even if only one gene of the pair is inherited for the trait
An organism that has two identical alleles for a trait
Homozygous
Which type of cell division is used in growth only?
A. Mitosis
B. Meiosis
A. Mitosis is used in growth only.
Natural selection is when organisms better adapted to their environment tend to survive and produce more offspring.
true
Which statement best describes the evolution of pesticide resistance in a population of insects?
A) The pesticide causes insects to mutate, making them resistant to future applications.
B) Insects learn to avoid the pesticide and pass this knowledge to their offspring.
C) Offspring of insects that are genetically resistant to the pesticide become more abundant as the susceptible insects die off.
C) Offspring of insects that are genetically resistant to the pesticide become more abundant as the susceptible insects die off.
a chart that shows the possible combination of alleles due to fertilization
punnett squares
An organism that has two different alleles for a trait
Heterozygous
Which type of cell division is used in sexual reproduction?
B. Meiosis creates the haploid cells needed for sexual reproduction.
The flipper of a whale, and the arm of a human are homologous. This means that they share a common
ancestor