Definition

1. Adjective (Biology, Genetics):
   • Pentaploid: Describing a cell or organism that possesses five complete sets of chromosomes (5n). This is a condition where the chromosome number is five times the basic haploid number.

Usage Examples

• Adjective:
  • Tế bào này có bộ nhiễm sắc thể ngũ bội. (This cell has a pentaploid chromosome set.)
  • Các nhà khoa học đang nghiên cứu một chủng thực vật ngũ bội hiếm gặp. (Scientists are studying a rare pentaploid plant strain.)

Advanced Usage

• "ngũ bội thể": a pentaploid; a pentaploid organism or cell.
  • Ngũ bội thể này có khả năng kháng bệnh cao. (This pentaploid has a high disease resistance.)

Variants and Related Words

• Lưỡng bội (adj): diploid (2n).
• Tam bội (adj): triploid (3n).
• Tứ bội (adj): tetraploid (4n).

Synonyms

• Pentaploid: Having five chromosome sets.

Notes on Usage

• This is a highly specialized scientific term used primarily in the fields of genetics, cell biology, and botany. It is not used in everyday conversation.
• The term is neutral and describes a specific genetic state without positive or negative connotation.