ABO blood groups in humans are controlled by the gene l. It has three alleles – lA, lB and i. Since there are three different alleles, six different genotypes are possible. How many phenotypes can occur?
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During meiosis I, the ______ chromosomes of each pair come together to lie side by side. |
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______ are heterozygous with regard to only one pair of alleles. |
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Which one of the followings is assigned an uppercase letter? |
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Test cross is a cross between |
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A man and a women, who do not show any apparent signs of a certain inherited disease, have seven children (2 daughter and 5 sons). Three of the sons suffer from the given disease but none of the daughters are affected. Which of the following mode of inheritance do you suggest for this disease? |
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If a colour-blind woman marries a normal visioned man, their sons will be |
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Select the correct statement from the ones given below with respect to dihybrid cross |
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A character which is expressed in a hybrid is called |
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How many different kinds of gametes will be produced by a plant having the genotype AABbCC? |
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The inactivated X chromosome is referred to as a _____ body. |
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