While analyzing a karyotype, geneticists identify a missing chromosome. Which term describes this chromosomal abnormality? aneuploidy
polyploidy
triploidy
tetraploidy

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

Agroup of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cells? a. the cells would not be able to make food, but would be able to release energy from biomolecules. b. the cells would not be able to replicate dna, but would be able to break down waste. c. the cells would not be able to break down waste, but would be able to replicate dna. d. the cells would not be able to release energy from biomolecules, but would be able to make food.

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because