Asked by Tanya Lizaola on Jun 27, 2024

verifed

Verified

Tasha has just given birth to healthy twins.One of the twins has an X and Y chromosome,while the other has two X chromosomes.These twins are

A) monozygotic.
B) dizygotic.
C) unizygotic.
D) either monozygotic or dizygotic.

Dizygotic

Pertaining to twins that are born from separate eggs fertilized by separate sperm cells, resulting in them being genetically similar as siblings rather than identical.

Monozygotic

Referring to twins that are genetically identical because they were formed from a single fertilized egg that split into two.

Chromosome

A thread-like structure made of protein and a single molecule of DNA, found in the nucleus of cells, carrying genes that determine inherited traits.

  • Distinguish between monozygotic and dizygotic twins, comprehending the determinants that affect twin growth.
verifed

Verified Answer

PM
Perla MartosJul 01, 2024
Final Answer :
B
Explanation :
Dizygotic twins, also known as fraternal twins, develop from two different eggs fertilized by two different sperm. The presence of one twin with XY chromosomes (male) and the other with XX chromosomes (female) indicates they are dizygotic, as monozygotic (identical) twins would have the same chromosomal sex.