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Category 2

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Category 3

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Category 4

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Category 5

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Category 1 questions follow

Questio

n Crossing overa. Has matching areas on chromatids exchangeb. Causes mutationsc. Affects how traits are passed on to offspringd. All of these are correct

10Category 1

Answ

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Crossing overa. Has matching areas on chromatids exchangeb. Causes mutationsc. Affects how traits are passed on to offspringd. All of these are correct

10Category 1

Questio

nGametes are indicated on a Punnet squarea. In the boxesb. Along the top and sidesc. Both a and b

20Category 1

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Gametes are indicated on a punnet squarea. In the boxesb. Along the top and sidesc. Both a and b

20Category 1

Questio

nPredicting the ratio of traits in offspring is easy when you use ________________.

30Category 1

Answ

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Predicting the ratio of traits in offspring is easy when you use ________________.

Punnet Square

30Category 1

Questio

nWhich of these is a best match for homozygous?a. Different traits are presentb. Ttc. ABd. Pure blood

40Category 1

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Which of these is a best match for homozygous?a. Different traits are presentb. Ttc. ABd. Pure blood

40Category 1

Questio

nExplain why deadly genetic diseases are usually recessive.

50Category 1

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Explain why deadly genetic diseases are usually recessive. The parents are carriers and survive to pass it to the offspring.

50Category 1

Category 2 questions follow

Questio

nNondisjunction causes Homologous chromosomes (same) to stick together in Metaphase so that they do not separate during anaphase. How can this affect chromosome number?

10Category 2

Answ

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Nondisjunction causes Homologous chromosomes (same) to stick together in Metaphase so that they do not separate during anaphase. How can this affect chromosome number?

A gamete may have one too many or one to few chromosomes

10Category 2

Questio

nGametes are produced duringa. Mitosisb. Meiosis

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Gametes are produced duringa. Mitosisb. Meiosis

20Category 2

Questio

nWhat occurs during fertilization?a. The egg is formed during meiosisb. The sperm is formed during meiosisc. Meiosis occursd. The egg and sperm are united

30Category 2

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What occurs during fertilization?a. The egg is formed during meiosisb. The sperm is formed during meiosisc. Meiosis occursd. The egg and sperm are united

30Category 2

Questio

nWhen is a di-hybrid cross used?a. Crossing 1 trait for 2 organismsb. Crossing 2 different traitsc. Both a and b are correct

40Category 2

Answ

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When is a di-hybrid cross used?

a. Crossing 1 trait for 2 organisms

b. Crossing 2 different traits

c. Both a and b are correct

40Category 2

Questio

nCells with only one member of each chromosome are calleda. Haploidb. Diploidc. Homozygousd. heterozygous

50Category 2

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Cells with only one member of each chromosome are calleda. Haploidb. Diploidc. Homozygousd. heterozygous

50Category 2

Category 3 questions follow

Questio

nWhat is the genotype for a homozygous tall dominate trait?a. Ttb. TTc. TS

10Category 3

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What is the genotype for a homozygous tall dominate trait?a. Ttb. TTc. TS

10Category 3

Questio

nWhat are the recessive traits indicated?

20Category 3

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What is the recessive trait indicated above?

WrinkledGreenwhite

20Category 3

Questio

nWhat is the genotype for the F1 generation indicated?

30Category 3

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What is the genotype for the F1 generation indicated?

RW

30Category 3

Questio

nWhich is correct about the picture?a. The gametes are RWb. Red is recessivec. Pink flowers are hybridsd. Pink indicates C0-dominance

40Category 3

Answ

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Which is correct about the picture?a. The gametes are RWb. Red is recessivec. Pink flowers are hybrids

with incomplete dominance

d. Pink indicates C0-dominance

40Category 3

Questio

nWhat is the genotype for the organisms in the square?a. 4 pinkb. 4 hybrid RW incomplete

dominantc. 2 hybrid, 2 pured. 4 hybrid RW co dominant

50Category 3

Answ

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What is the genotype for the organisms in the square?a. 4 pinkb. 4 hybrid RW incomplete

dominantc. 2 hybrid, 2 pured. 4 hybrid RW Co-dominant

50Category 3

Category 4 questions follow

Questio

nHow can you determine the phenotype of the horse?a. Doing a test-crossb. Produce Punnet squaresc. Look at him

10Category 4

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How can you determine the

phenotype of the horse?

a. Doing a test-cross

b. Produce Punnet squares

c. Look at him

10Category 4

Questio

nThe law of ____________________states that the inheritance of alleles for one trait is not affected by the inheritance of alleles for a different trait if the genes for the traits are on separate chromosomesa. Independent assortment b. Segregation

20Category 4

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The law of ____________________states that the inheritance of alleles for one trait is not affected by the inheritance of alleles for a different trait if the genes for the traits are on separate chromosomesa. Independent assortment b. Segregation

20Category 4

Questio

nMendel’s law of _____________states that during meiosis, the factors that control each trait separate, and only one factor from each pair is/are passed to the offspring. a. Independent Assortmentb. Segregation

30Category 4

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Mendel’s law of _____________states that during meiosis, the factors that control each trait separate, and only one factor from each pair is/are passed to the offspring. a. Independent Assortmentb. Segregation

30Category 4

Questio

nAlternative forms of a trait are calleda. genesb. Allelesc. Chromosomesd. gametes

40Category 4

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Alternative forms of a trait are calleda. b. alleles

40Category 4

Questio

nIn humans, brown eyes are dominant over blue. A blue eyed man marries a brown eyed women. What is the man’s genotype?

50Category 4

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In humans, brown eyes are dominant over blue. A blue eyed man marries a brown eyed women. What is the man’s genotype?

bb

50Category 4

Category 5 questions follow

Questio

nIn dogs, there is an hereditary deafness caused by a recessive gene, “d.” A kennel owner has a male dog that she wants to use for breeding purposes if possible. The dog can hear, so the owner knows his genotype is either DD or Dd. If the dog’s genotype is Dd, the owner does not wish to use him for breeding so that the deafness gene will not be passed on. How can you determine its genotype?

10Category 5

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A kennel owner has a male dog that she wants to use for breeding purposes if possible. The dog is either DD or Dd. How can you determine its genotype?

TEST CROSS_Cross it with a recessive dd If the dominant trait is present, some of the

offspring will have the trait

10Category 5

Questio

nHow can two hearing dogs produce deaf offspring?

20Category 5

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How can two hearing dogs produce deaf offspring?Both parents were hybrids

20Category 5

Questio

nIn certain trees, smooth bark is dominant over wrinkled.

Cross two trees that are heterozygous for smooth bark.

If there are 100 offspring produced, how many will have

wrinkled bark?

30Category 5

Answ

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In certain trees, smooth bark is dominant over wrinkled.

Cross two trees that are heterozygous for smooth bark.

If there are 100 offspring produced, how many will have

wrinkled bark?

25 % wrinkled

30Category 5

S sS SS Sss Ss ss

Questio

nWhat are the phenotypes and frequencies indicated?

40Category 5

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Black, Coarse- 4

Black- Fine- 4

White – coarse- 4

White- fine- 4

40Category 5

Questio

nA tan coat in rats is dominant but so is white. Black eyes are dominant to red eyes.A pure tan coat rat with red eyes is crossed with a heterozygous black eyed, homozygous white rat.

What are the genotypes of the parents?

50Category 5

Wrong traits shown

Answ

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A pure tan coat rat with red eyes - TTbbheterozygous black eyed, homozygous white rat.- WWBb

50Category 5