Achondroplasia is caused by base-pair substitution mutation that converts ____

TLS Online TPP Program

#Question id: 12133

#Unit 10. Ecological Principles

Which of the following is an example of cryptic coloration?

TLS Online TPP Program

#Question id: 1880

#Unit 4. Cell Communication and Cell Signaling

Which one of the following mast cell products is NOT preformed and therefore has to be newly synthesized?

TLS Online TPP Program

#Question id: 4197

#Unit 3. Fundamental Processes

The role of GTP in the elongation phase of protein synthesis is to supply energy for

TLS Online TPP Program

#Question id: 18680

#Unit 13. Methods in Biology

DNA from Salmonella species, when digested with the restriction enzyme Xba I, gives around 15 fragments ranging from 25 kb to 680 kb This pattern of fragments, or ‘fingerprint’, is unique to that strain. If the same fingerprint is found from bacteria from other infected people, then it can be assumed that they were all infected from a common source. Thus, by comparing their eating habits, food sources, etc. the source of the infection can be traced to a restaurant, food item. The fingerprints are created and analysed by

TLS Online TPP Program

#Question id: 7223

#Unit 5. Developmental Biology

In drosophila, the dorso-ventral axis of the embryo becomes divided into four regions early in embryogenesis.

A. The ventral mesoderm, which will form muscles and other internal connective tissues

B. The amnioserosa, which gives rise to an extra-embryonic membrane on the dorsal side of the embryo

C. The dorsal ectoderm, which gives rise to larval epidermis

D. The ventral ectoderm or neuroectoderm, which gives rise to the larval nervous system and epidermis

What is the correct sequence of these regions from ventral to dorsal?