Which two processes are best represented by the diagram shown below

1.  Recombination and codominance

2.  Segregation and recombinations

3.  Segregation and intermediate inheritance

4.  Codominance and gene linkage

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4
Correct Answer :

Segregation and recombinations


Explanation :
No Explanation available for this question

Kernel colour in corn is a trait determined by two alleles.The dominant allele(P) produces a purple colour,and the recessive allele(p) produces a yellow colour.The diagram below shows an ear of corn produced by crossings two corn plants.The shaded kernels are purple,and the unshaded ones are yellow. The yellow kernels can be best described as

1.  Homozygous dominant

2.  Hybrid

3.  Heterozygous

4.  Homozygous recessive

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4
Correct Answer :

Homozygous recessive


Explanation :
No Explanation available for this question

How many genetically different kinds of gametes will an individual with genotype AAbb produce

1.  One

2.  Two

3.  Three

4.  Four

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4
Correct Answer :

One


Explanation :
No Explanation available for this question

Round seed is dominant over wrinkled seed in pea.If homozygous,round seeded peas are crossed with wrinkled seeded peas,the offsprings will be

1.  All round

2.  All wrinkled

3.  50% round and 50% wrinkled

4.  75% round and 25% wrinkled

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4
Correct Answer :

All round


Explanation :
No Explanation available for this question

If heterozygous round seeded pea plants are self pollinated,the offspring will be

1.  75% round

2.  50% heterozygous

3.  25% aa

4.  All of these

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4
Correct Answer :

All of these


Explanation :
No Explanation available for this question

Assume that the red-green colourblindness is sex-linked.A colourblind woman and a man with normal vision have a son.The son’s genotype is

1.  Aa

2.  ay

3.  Ay

4.  AxAx

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4
Correct Answer :

ay


Explanation :
No Explanation available for this question

A man and a woman,both with normal thumbs,have a son with Hitchhiker’s thumb.It is likely that ….is/are heterozygous

1.  The son

2.  The man

3.  The womans

4.  Both parent

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4
Correct Answer :

Both parent


Explanation :
No Explanation available for this question

In pigeons,checkered pattern is dominant over plain pattern and red colour is dominant over brown.A checkered brown female mated with a plain red male produced two checkered red,two plain red,and one checkered brown offspring.What are the probable genotypes of the parents

1.  CCRR and ccrr

2.  CcRr and CRrr

3.  CcRr and ccRR

4.  Ccrr and ccRr

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4
Correct Answer :

Ccrr and ccRr


Explanation :
No Explanation available for this question

How did Mendel’s studies in genetics differ from earlier studies of breeding and inheritance

1.  Mendel worked with plants;earlier studies used animals

2.  Mendel was able to explain the blending hypothesis

3.  Mendel’s work was more quantitative

4.  Mendel worked with wild species,not the domesticated ones

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4
Correct Answer :

Mendel’s work was more quantitative


Explanation :
No Explanation available for this question

A truebreeding fruit fly would be ….. for a certain characteristics

1.  Homozygous dominant

2.  Homozygous recessive

3.  Heterozygous

4.  Both (a) or (b)

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4
Correct Answer :

Both (a) or (b)


Explanation :
No Explanation available for this question
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