In Mendel’s experiments,there are two alleles of the gene that causes pea shape-R(round) and r(wrinkled)and two alleles of the gene that causes plant height-T(tall) and t(short).How many different kinds of eggs are produced by a short plant with wrinkled peas

1.  One

2.  Two

3.  Four

4.  Eight

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4
Correct Answer :

One


Explanation :
No Explanation available for this question

When a pure strain of tall plants with round peas is crossed with a pure strain of short plants with wrinkled peas (see Q.No.109),what proportion of the F1 generation will be short with wrinkled peas

1.  Zero

2.  1/16

3.  1/2

4.  9/16

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4
Correct Answer :

Zero


Explanation :
No Explanation available for this question

When a pure strain of tall plants with round peas is crossed with a pure strain of short plants with wrinkled peas(see Q.No.109),how many different kinds of eggs can their offspring(the F1 generation) produce

1.  One

2.  Two

3.  Four

4.  Eight

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4
Correct Answer :

Four


Explanation :
No Explanation available for this question

When a pure strain of tall plants(T/T) with round peas(R/R) is crossed with a pure strain of short plants(t/t) with wrinkled peas (r/r),a F1 generation is produced.When these F1 plants self-pollinate,how many genotypes(with regard to the genes for height and pea shape) are produced in the F2 generation

1.  4

2.  6

3.  9

4.  16

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4
Correct Answer :

9


Explanation :
No Explanation available for this question

When a pure strain of tall plants(T/T) with round peas(R/R) is crossed with a pure strain of short plants(t/t) with wrinkled peas (r/r),a F1 generation is produced.When these F1 plants self-pollinate,how many phenotypes(with regard to the genes for height and pea shape) are produced in the F2 generation

1.  4

2.  6

3.  9

4.  16

View Answer  
4
Correct Answer :

4


Explanation :
No Explanation available for this question

When a pure strain of tall plants(T/T) with round peas(R/R ) is crossed with a pure strain of short plants(t/t) with wrinkled peas (r/r),a F1 generation is produced The alleles for short and wrinkled are recessive to those for tall and round,respectively.When these F1 plants self-pollinate,what proportion of the F2 generation is short with wrinkled peas

1.  Zero

2.  1/16

3.  1/2

4.  9/16

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4
Correct Answer :

1/16


Explanation :
No Explanation available for this question

In watermelon,the allele for green colour(G) is dominant over the allele for stripped colour(g) and the allele for short shape(s) is dominant over the allele for long shape(S).When long,stripped watermelons are crossed with watermelons heterozygous for both traits,what proportion of the offspring are stripped and short

1.  Zero

2.  1/4

3.  1/2

4.  9/16

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4
Correct Answer :

1/4


Explanation :
No Explanation available for this question

How many different kinds of gametes can an organism of genotype A/a;B/B;C/c produce

1.  3

2.  4

3.  9

4.  16

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4
Correct Answer :

4


Explanation :
No Explanation available for this question

If Mendel had studied 8 traits using pea plants with 14 chromosomes,he would

1.  Not have proposed that chromosomes are carriers of hereditary factor

2.  Not have discovered the law of independent assortment

3.  Have discovered sex linkage

4.  Have discovered polygenic inheritance

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4
Correct Answer :

Not have discovered the law of independent assortment


Explanation :
No Explanation available for this question

Mendelian recombinations are due to

1.  Linkage

2.  Modification

3.  Independent assortment of characters

4.  Mutations

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4
Correct Answer :

Independent assortment of characters


Explanation :
No Explanation available for this question
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