Question

question 44
what diagnostic procedures can a karyotype be used for?
○ screening for specific genes found in an organism
○ identifying the species of an organism
○ screening for defective or abnormal numbers of chromosomes in an individual
○ identifying the life cycle of a specific organism

Explanation:

A karyotype is a visual representation of an individual's chromosomes. It helps in observing the number, size, and shape of chromosomes. Screening for specific genes requires techniques like DNA sequencing or PCR, not karyotyping. Identifying species is done via other methods (e.g., morphological, genetic sequencing of specific markers), and karyotyping doesn't relate to an organism's life cycle. Karyotyping is used to detect chromosomal abnormalities (like aneuploidy, structural defects), so the correct option is the one about screening for defective/abnormal chromosome numbers.

Answer:

C. screening for defective or abnormal numbers of chromosomes in an individual