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What does pleiotropy mean?
Pleiotropy occurs when one gene influences multiple, seemingly unrelated phenotypic traits (those you see). A series of defects that affect multiple systems but is caused by one defective gene.
What does a gene do in a organism?
A gene has all the traits of the organism
How does predation helps in the evolution of organisms?
Predation causes traits that enable prey to evade predators to be favoured in the population gene pool.
What is a gene that is altered or copied incorrectly called?
A gene that is altered or copied incorrectly is called a mutation. Mutations can occur spontaneously or be induced by external factors, and they can lead to changes in an organism's traits or characteristics.
What does natural selection cause in a population on a genetic level?
Natural selection causes changes in the frequency of certain genetic traits within a population over time. Traits that confer a survival or reproductive advantage are more likely to be passed on to the next generation, leading to an increase in those beneficial genetic traits in the population.
What is a small gene pool?
A small gene pool refers to a limited set of genetic variations within a population, which can increase the risk of genetic disorders or reduce the population's ability to adapt to changing environments. It can occur in isolated or inbred populations where individuals are more likely to share similar genetic traits.
What are Mendelian traits?
Traits that are controlled a multiple gene loci. Polygenic traits.
What change in genes or chromosomes that causes a new trait to be inherited?
Mutations create variation in the gene pool by causing new traits to appear
What is the difference between single-gene traits and complex traits?
Single gene diseases only effect one typeof gene where im a complex genetic disease many genes are effected. An example of a single gene diseas is sickle cell anemia. Cancer would be an eexample of a complex gene disease.
How do species get their traits?
Species inherit their traits through a combination of genetic material passed down from their parents and random mutations that occur over time. These traits can be influenced by natural selection, genetic drift, and gene flow, leading to the diversity of traits seen within a species.
What gene will exhibit its traits even in a prensesce of a recessive gene?
A dominant gene will exhibit its traits even in the presence of a recessive gene. This is because the dominant gene masks the expression of the recessive gene when present in the same individual.
The traits of an organism are controlled?
Gene
