How many types of pollen grains are formed by dihybrid plants?

Question

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Answer 1

Total number of types of gamete produce by an organism is 2 $^{n}$ , where n is the number of heterozygous genes present. As we know that dihybrid plant, for example AaBb, is heterozygous for two genes, thus total possible gametes by it = 2 $^{2}$ = 4. Option C is correct.
A trihybrid plant, for example AaBbCc, is heterozygous for three genes, thus total possible gametes by it = 2 $^{3}$ = 8 which makes option D wrong. If a plant is heterozygous for single gene, for example Aa, thus total possible gametes by it = 2 $^{1}$ = 2 which makes option B wrong. Single type of gamete is produced by homozygous plants, for example AA, BB etc.

Answer 2

Total number of types of gamete produce by an organism is 2

^{n}

, where n is the number of heterozygous genes present. As we know that dihybrid plant, for example AaBb, is heterozygous for two genes, thus total possible gametes by it = 2

^{2}

= 4. Option C is correct.

A trihybrid plant, for example AaBbCc, is heterozygous for three genes, thus total possible gametes by it = 2

^{3}

= 8 which makes option D wrong. If a plant is heterozygous for single gene, for example Aa, thus total possible gametes by it = 2

^{1}

= 2 which makes option B wrong. Single type of gamete is produced by homozygous plants, for example AA, BB etc.

How many types of pollen grains are formed by dihybrid plants?

One

Two

Four

Eight

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In Pisum sativum, there are 14 chromosomes. How many types of homologous pairs can be prepared?

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How many types of pollen grains are formed by dihybrid plants?

One

Two

Four

Eight

Name the plant Mendel used for his experiment. What type of progeny was obtained by Mendel in F1​ and F2​ generations when he crossed the tall short -plants? Write the ratio he obtained in F2​ generation plants.

In Pisum sativum, there are 14 chromosomes. How many types of homologous pairs can be prepared?

How many different types of gametes are formed from AaBbCcDdEe

Make a list of any four observable traits in pea plants with their contrasting forms of characters.

Name the plant Mendel used for his experiment. What type of progeny was obtained by Mendel in $F_{1}$ and $F_{2}$ generations when he crossed the tall short -plants? Write the ratio he obtained in $F_{2}$ generation plants.