Sentences of a paragraph are given below in jumbled order. Arrange the sentences in the correct order to form a meaningful and coherent paragraph.
A. Mendel’s simple ‘Laws of heredity’ came to be widely known and were uncritically assumed to apply to all human characteristics.
B. With Charles Darwin’s popularisation of the concept of evolution, man became interested in his biological origins and affiliations.
C. Starting with the work on heredity of Gregor Mendel in the 1860s and the recognition of its significance in 1900, interest shifted to the problem of man’s ontogenetic origins.
D. This interest was centred on man’s phylogenetic origins.

Correct option is D

Option (d) BDCA is the correct order of the given sentences.

Explanation of the correct sequence:

• (B): Introduces the main theme, discussing how Darwin’s concept of evolution sparked interest in human origins.
• (D): Specifies that this interest was initially in man's phylogenetic (evolutionary) origins.
• (C): Introduces Mendel's work on heredity and how it became significant.
• (A): Concludes by stating that Mendel’s laws became widely accepted.

Thus, BDCA forms a logical and coherent paragraph.