Trisomy 21, as illustrated by the karyotype, is caused by nondisjunction. This occurs when chromosomes do not separate properly during meiosis.
Answer is D) nondisjunction
I think the answer should be 16 because 1×2^4=16
The instrument that records and measures the seismic waves during an earthquake is a seismograph. It uses the vibration propagated by from the earthquake source's energy. It mainly uses a suspended pen that records the motion between itself and the paper film.
Answer:
coordinated regulation of a group of genes that encode proteins with a common function.
Answer:
different traits inherited by pffspring have different survival values
Explanation: