The average daily temperature change on an exposed south-facing slope and a north-facing slope for a late summer day in the Northern Hemisphere are shown below.

The difference in the  maximum average daily  temperature between the  south-facing slope  and  the  north-facing slope is approximately

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#Question id: 29574

#Unit 6. System Physiology – Plant

Some of the following statement are given regarding ToxA gene  

a. It produced by Stagonospora nodorum cause glume blotch and tan spot disease

b. encodes a 13‐ kDa polypeptide

c. stimulates host cell death in a light dependent manner

d. stimulates host cell death in a dark dependent manner

Which of the following is true regarding TMV

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#Question id: 15749

#Unit 5. Developmental Biology

In Drosophila, if there is one X chromosome and two sets of autosomes then the fly is:

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#Question id: 19843

#Unit 13. Methods in Biology

Real time PCR analyzed various steps such as__

a) Denaturation

b) Annealing

c) Phosphorylation

d) Amplification

e) Methylation

f) Extension

Which of the following steps are correctly analyzed by real time PCR?

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#Question id: 16143

#Unit 4. Cell Communication and Cell Signaling

undifferentiated hematopoietic stem cells would not express surface markers specific for mature cells from the multiple blood lineages (“Lin” markers). They used several approaches to eliminate cells in the bone marrow that did express these markers (Lin+ cells) and then examined the remaining (Lin+) population for its potential to continually give rise to all blood cells over the long term. Lin- cells were, indeed, enriched for this potential. what marker is   express If cells inter in lymphoid lineages?

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#Question id: 24506

#Unit 10. Ecological Principles

the immunological response is short-lived, the infections tend to be persistent by