1. Which of the following best describes what is meant by \'Inheritance\' in bio

Question

1. Which of the following best describes what is meant by 'Inheritance' in biological terms?

   A.structure and function of genes
   B.the ultimate result of meiosis
   C.the passing of genes from parental cell to daughter cell in mitosis
   D.passing of traits from parent to offspring

2. Gregor Mendel used pea plants to analyze inheritance patterns. In retrospect, pea plants were a great experiential unit for Mendel for all of the following reasons EXCEPT:

   A.pea plants only have dominat and recessive genes
   B.pea plants grow fast and are easy to maintain
   C.pea plants can be easily manipulated in producing hybrids
   D.pea plants have many characters that express one of two types

3. Which of the following best describes the difference between alleles and genes?

   A.alleles are temporary; genes are permanent
   B.alleles are variations of a gene
   C.alleles are inherited, genes are not
   D.there is no difference between genes and alleles

4. Which statement below best describes the difference between a dominant gene and a recessive gene?

   A.dominant genes are stronger than recessive genes
   B.domiant genes aid in survival of the organism where recessive genes do not
   C.dominant genes are working where recessive genes do not work
   D.dominant genes produce 'visible' traits where recessive genes produce 'hidden' traits

5. Mendel's Principle of Segregation, which he deduced from analyzing dihybrid crosses, states that each pair of alleles segregate independent of the other pairs during gamete formation. Which of the following is the meiotic explanation for Mendel's Principle of Segregation?

   A. tretrad formation
   B. crossing over
   C. independnent assortment
   D. haploidy

6. Which of the following statements below best distinguishes pleiotropy and polygenic inheritance?

   A.pleiotropy is one gene many phenotypes where polygenic is many genes one phenotype
   B.pleiotropy is many genes one phenotype where polygenic is one gene many phenotypes
   C.pleiotropy is a 'blending' between parental types where polygenic is many discrete phenotypes
   D.pleiotropy is one genes expressing its phenotype where polygenic is many genes equally expressing their phenotypes together

7. Many parakeets show dominant-recessive inheritance patterns in their feather color. Blue feathers are dominant over yellow feathers. However, in order to express feather color, they also need a dominant pigment gene which controls feather color expression. What type of inheritance pattern does feather color represent?

   A.incomplete dominance
   B.codominance
   C.pleiotropy
   D.epistasis

Explanation / Answer

1. D passing of traits from parent to offspring

2. D. pea plants have many characters that express one of two types

3. B.alleles are variations of a gene

4. D.dominant genes produce 'visible' traits where recessive genes produce 'hidden' traits

5. C. independnent assortment

6.  A.pleiotropy is one gene many phenotypes where polygenic is many genes one phenotype

7.   B.codominance

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