Researchers studying genetic similarity in hornbill species are most likely to use which characteristic for classification?
DNA sequence comparison
Biological classification has evolved from relying purely on visible morphological features to using molecular tools that reveal genetic relationships more accurately.
DNA sequence comparison allows scientists to directly measure the degree of genetic similarity between species by examining differences and similarities in their genetic material.
While beak shape, diet, and nesting habits are useful for identifying species based on external or ecological traits, they do not directly reveal genetic relatedness, which can be masked or exaggerated by convergent evolution.
Hence, researchers studying genetic similarity in hornbill species are most likely to use DNA sequence comparison for classification.
Two specimens: one has undifferentiated body living in water, the other has true roots, stems, and leaves. Which of the following correctly matches them with their classes?
In a comparative study, angiosperms might be more diverse than gymnosperms in various environments as:
A zoologist finds two organisms with the same order but different families.Which conclusion about their classification does this indicate?
Two aquatic animals: one has pores for water flow, the other uses tentacles to capture prey. Which key structural difference explains their feeding strategies?
After a genetic study, two bacteria previously grouped together are found to have highly divergent DNA. According to modern classification, which of the following is the most likely consequence?
A green, thread-like plant in freshwater pond lacks roots, stems, and leaves but photosynthesizes. Based on this information, which group does it belong to?
Two vascular plants: one produces seeds in cones, the other has seeds in fruits. Which statement accurately distinguishes these groups?
During rehabilitation, a patient with vertebral damage has impaired organ coordination. Which vertebrate feature underlies this complication?
A science teacher asks students to identify an organism under the microscope. The organism is single-celled, has a rigid cell wall, and produces oxygen through photosynthesis. Which organism is most likely being observed?
A new land plant has vascular tissues but no flowers or seeds. Which group does it belong to, and which significant challenge does this group face?
Select the hierarchy (descending) of the taxonomic ranks using the codes given below:
A. Order
B. Genus
C. Class
D. Species
E. Family
Codes :
Mycoplasmas are different from the other prokaryotes by:
Taxonomic studies based on DNA are part of:
Mycology is related to the study of-
Nutritionally Albugo is