Differentiate between the following:
$(a)$ Dominant and Recessive
$(b)$ Homozygous and Heterozygous
$(c)$ Monohybrid and Dihybrid.

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(N/A) Dominant and Recessive
DominantRecessive
$1.$ $A$ dominant factor or allele expresses itself in the presence or absence of a recessive trait.$1.$ $A$ recessive trait is able to express itself only in the absence of a dominant trait.
$2.$ For example,tall plant,round seed,and violet flower are dominant characters in a pea plant.$2.$ For example,dwarf plant,wrinkled seed,and white flower are recessive traits in a pea plant.

$(b)$ Homozygous and Heterozygous
HomozygousHeterozygous
$1.$ It contains two similar alleles for a particular trait.$1.$ It contains two different alleles for a particular trait.
$2.$ Genotype possesses either dominant or recessive alleles,but never both. For example,$RR$ or $rr$.$2.$ Genotype possesses both dominant and recessive alleles. For example,$Rr$.
$3.$ It produces only one type of gamete.$3.$ It produces two different kinds of gametes.

$(c)$ Monohybrid and Dihybrid
MonohybridDihybrid
$1.$ $A$ monohybrid cross involves parents that differ in only one pair of contrasting characters.$1.$ $A$ dihybrid cross involves parents that differ in two pairs of contrasting characters.
$2.$ For example,a cross between tall and dwarf pea plants is a monohybrid cross.$2.$ For example,a cross between pea plants having yellow wrinkled seeds and those having green round seeds is a dihybrid cross.

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