Answer:
monosomy or loss of a single chromosome
Explanation:
- The presence of a given number of chromosomes in a cell that differs from the normal number of chromosomes defined for an organism is termed as aneuploidy.
- There can be either an extra chromosome present or a chromosome that can be missing thus leading to either an increase or decrease in the number of total chromosomes in the organism.
- If there is a loss of a single chromosome in the cell then this type of aneuploidy is termed as monosomy.
- In a normal individual if two copies of one chromosome are present then monosomy would result only in the presence of a single chromosome.
- This type of condition can lead to different genetic defect and disorders , one such example is turner syndrome.
- Therefore, in the spontaneously aborted embryo, the presence of only one chromosome number two is a type of monosomy.
Answer:
The sun is a star, so it maintains its mass at a constant value and its circular shape does not change, this being a celestial body.
