Question

The occurrence of more or fewer than the usual diploid number of large DNA sequences is called

  

a haplotype.

   

copy number variation.

   

triploidy.

   

monosomy.

   

Both B and D are correct.

Answer 1

ANSWER IS OPTION d:monosomy

THE OCCURENCE OF MORE OR FEWER THAN THE USUAL DIPLOID NUMBER OF LARGE DNA SEQUENCES IS CALLED AS "ANEUPLOIDY ".[ 2n+1 or 2n-1 ]

THEREFORE IT GENOMIC MUTATIONS INVOLVE LOSS OR GAIN OF WHOLE CHROMOSOMES , GIVING RISE TO MONOSOMY ( EXAMPLE :TURNER SYNDROME   45,X0 ) OR TRISOMY ( EXAMPLE:DOWN SYNDROME -TRISOMY 21 )

HAPLOTYPE :GROUP OF GENES THAT ARE INHERITED TOGETHER FROM A SINGLE PARENT AS A ONE UNIT.

COPY NUMBER VARIATION :THESE ARE GENETIC ALTERATIONS IN WHICH LARGE SECTIONS OF DNA ARE DUPLICATED OR DELETED, SO THERE ARE EITHER MORE OR LESS THAN THE USUAL NUMBER OF COPIES OF PARTICULAR GENE OR GENE SEGMENT WITH IN A CHROMOSOME.

TRIPLOIDY: IT IS TYPE OF EUPLOIDY (EXACT MULTIPLE OF HAPLOID SET OF CHROMOSOMES )

TRIPLOID MEANS 3 TIMES HAPLOID SET OF CHROMOSOMES ( 3n ).