Eukaryotic chromosomes are composed of which of the following macromolecules?

TLS Online TPP Program

#Question id: 2946

#Unit 2. Cellular Organization

Which of the following occurs during anaphase A?

TLS Online TPP Program

#Question id: 12792

#Unit 10. Ecological Principles

Many  homeowners mow  their  lawns  during the  summer and  collect  the  clippings,  which  are  then  hauled to  the local landfill. Which of the following actions would most benefit the local ecosystem?

TLS Online TPP Program

#Question id: 13013

#Unit 10. Ecological Principles

Suppose the number of bird species is determined mainly by the number of vertical strata found in the environment. If so, in which of the following biomes would you find the greatest number of bird species? 

TLS Online TPP Program

#Question id: 13204

#Unit 6. System Physiology – Plant

Many of the carriers of Sucrose–H+ symporters in the phloem play various role in transport, most of the transporters are found in source, path, and sink tissues. Some carriers are characterized such as;

a) SUT1, has high-affinity / low-capacity transporter found in the minor veins of source tissues, appears to be important in phloem loading.

b) Important role of SUT1 in phloem loading appears to be complemented by SUT4, which is low-affinity/high-capacity carrier

c) SUT2, appears to function as a sucrose sensor. This is indicated by findings showing that SUT2 is more highly expressed in sink and path tissues than in source leaves.

d) The major sucrose transporters in phloem loading into the companion cells and final uptake into companion cells appears to be the function of SUT4

Which of the following combination is correct?

TLS Online TPP Program

#Question id: 19706

#Unit 13. Methods in Biology

In second-degree heart block