FREE BIOLOGY AND STUDY GAMES ABOUT HARRY

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FREE BIOLOGY AND STUDY GAMES ABOUT HARRY

POTTER GENETIC EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -29 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: The genotype that normally results in the expression of a recessive allele in the phenotype.

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homozygous recessive Question 2: Alternate forms of the same gene. Because they are different, their action may result in different expressions of a trait.

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alleles Question 3: simple graphical method of showing all of the potential combinations of offspring genotypes that can occur and their probability given the parent genotypes.

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punnett square Question 4: A trait that is determined by the combined effect of more than one gene. Human skin and hair color are examples. The result of this kind of inheritance is the perception of gradation in the expression of such traits.

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polygenic trait

Question 5: The genetic makeup of an individual for a trait or for all of his/her inherited traits-not the observable or detectable characteristics.

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genotype Question 6: The general term for inheritance patterns which can be explained by simple rules of dominance and recessiveness of genes.

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Mendelian genetics Question 7: The term for a genotype in which there is a dominant allele and a recessive one.

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heterozygous Question 8: The inheritance pattern in which a trait is expressed in the phenotype of heterozygous individuals a blend or an intermediate expression.Ex:primroses white flowers are homozygous recessive, red ones are homozygous dominant, & pink ones are heterozygous.

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incomplete dominance Question 9: Genes that can either initiate or block the expression of other genes & control the production of a variety of chemicals in plants and animals. These genes work as master switches which cause changes to occur in our bodies as we grow older.

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regulator genes Question 10: The genotype of an individual who is a carrier for a recessive allele that is not expressed in his/her phenotype.

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heterozygous Question 11: Offspring that are the result of mating between genetically similar kinds of parents--the opposite of hybrid.

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purebred

Question 12: Offspring that are the result of mating between two genetically different kinds of parents--the opposite of purebred.

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hybrid Question 13: The general term for an allele that masks the presence of another allele in the phenotype.

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dominant allele

Question 14: The term for a genotype in which there are two recessive alleles.

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homozygous recessive Question 15: A genotype consisting of two identical alleles of a gene for a particular trait.

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homozygous genotype Question 16: A genotype consisting of two different alleles of a gene for a particular trait.

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heterozygous genotype Question 17: The study of gene structure and action and the patterns of inheritance of traits from parent to offspring. This is the branch of science that deals with the inheritance of biological characteristics.

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genetics Question 18: Units of inheritance usually occurring at specific locations, or loci, on a chromosome. These units are responsible for hereditary characteristics in plants and animals.

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genes

Question 19: The inheritance pattern in which two different alleles for a trait are expressed unblended in the phenotype of heterozygous individuals. Type AB human blood is an example.

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codominance

Question 20: The term for a genotype in which there are two dominant alleles.

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homozygous dominant Question 21: Mendel's principle of genetic inheritance stating that, for any particular trait, the pair of genes of each parent separate (during the formation of sex cells) and only one gene from each parent passes on to an offspring.

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principle of segregation Question 22: Mendel's principle ofinheritance states different pairs of genes are passed to offspring independently so new combinations of genes are possible.So,the genes controlling different traits are inherited independently of one another.

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principle of independent assortment Question 23: The observable or detectable characteristics of an individual organism; the detectable expression of a genotype.

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phenotype Question 24: A 19th century central European monk scientist who published his ideas about genetics in 1866 but largely went unrecognized until 1900, which was long after his death.He acquired his understanding of genetics mostly through pea plant breeding experiments.

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Gregor Mendel Question 25: Genes that can alter how certain other genes are expressed in the phenotype.Genes causing some kinds of cataracts can be affected by such accompanying genes.

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modifying genes