Which one of the following is an environmental variation?

This law describes how each homologous pair separates independently of any other pairs during Anaphase I of meiosis.

• Law of independent assortment was described by Gregor Mendel
• Segregation of individual traits occur during meiosis
• Independent assortment was described following dihybrid cross

What type of graph do we use for discontinuous variation?

• Variation is the difference in genetic make up of individuals among same species
• Variation can be continuous or discontinuous
• Continuous variations do not have limited range. Height, weight are classical examples
• Discontinuous variations have limited range. Eye color, blood groups are classical examples
• Continuous and discontinuous variations are expressed in bell- shaped graph and bar graph, respectively

Which of these is an example of inherited variation only?

• Eye color is due to the expression of 2 genes: ORC2 and HERC2
• Increased and decreased expression of the genes produce brown eyed and blue eyed offspring, respectively

A length of DNA that codes for a specific characteristic

• Functional unit if hereditary is called gene
• Gene codes for specific proteins
• Genes are located at locus
• Alteration in the sequence of DNA is called mutation

Differences that exist naturally among members of a population or species are called ___?

• Genetic variation is the reason for difference among individuals within the same species
• Variations can be continuous or discontinuous

The ability to recognize a predator is an example of a ______adaptation?

Most adaptations that help an organism survive are passed on from parent to child as ___traits?

• Genetic information is stored in DNA present in the nucleus of the cells
• Genetic information can be passed from parent to offspring which is termed as inheritance

An organism that survives longer is more likely to produce_______offspring

• Individuals lacking fitness either does not attain mature age or fail to reproduce healthy offspring 

Which one of the following shows continuous variation?

• Genetic variation is the reason for difference among individuals within the same species
• Variations can be continuous or discontinuous
• Continuous variation of a trait is not limited to a specific number as in height or weight of individuals in a group

Which one of the following shows discontinuous variation?

• Genetic variation is the reason for difference among individuals within the same species
• Variations can be continuous or discontinuous
• Discontinuous variation of a trait is limited to specific number as in eye color or blood groups

The variety of genes and alleles that exist in organisms.

• Genetic diversity refers to difference in genetic make up among individuals of the same species
• Genetic diversity decides the fate of survival of the individual
• Different breeds of animals, birds are few examples of genetic diversity
• Independent assortment represents the separation of genes during meiosis

_____________ is the transfer of characters from parents to offspring.

Mitosis is also known as _________________.

Genetic variation is not caused by: