................... is the description of genes present in an organism.

Phenotype

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Genotype

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Both of the above

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None of the above

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Solution

The correct option is B Genotype
Genotype and phenotype are very similar and related words. The genotype is the set of genes in our DNA which is responsible for a particular trait. In other words, it is the genetic constitution of an organism. The phenotype is the physical expression, or characteristics, of that trait. For example, TT or Tt are the genotypes and tallness is the phenotype. Thus, option B is correct and other options are wrong.

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Similar questions

	Column I		Column II
(1)	Dominance	(i)	Many genes govern a single character
(2)	Codominance	(ii)	In a heterozygous organism only one allele expresses itself
(3)	Pleiotropy	(iii)	In a heterozygous organism both alleles express themselves fully
(4)	Polygenic inheritence	(iv)	A single genes influences many characters

\begin{matrix} C o l u m n I & C o l u m n I I A . & D o m i n a n c e & (i) & M a n y g e n e s g o v e r n a s i n g l e c h a r a c t e r B . & C o d o m i n a n c e & (i i) & I n a h e t e r o z y g o u s o r g a n i s m o n l y o n e a l l e l e e x p r e s s e s i t s e l f C . & P l e i o t r o p y & (i i i) & I n a h e t e r o z y g o u s o r g a n i s m b o t h a l l e l e s e x p r e s s t h e m s e l v e s f u l l y D . & P o l y g e n i c i n h e r i t a n c e & (i v) & A s i n g l e g e n e i n f l u e n c e s m a n y c h a r a c t e r s \end{matrix}

	Column I		Column II
(1)	Dominance	(i)	Many genes govern a single character
(2)	Codominance	(ii)	In a heterozygous organism only one allele expresses itself
(3)	Pleiotropy	(iii)	In a heterozygous organism both alleles express themselves fully
(4)	Polygenic inheritence	(iv)	A single genes influences many characters

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