In the human heart, the SA node is located at the junction of the superior vena cava with the:

#Question id: 19098

#Unit 4. Cell Communication and Cell Signaling

#Question id: 3752

#Unit 3. Fundamental Processes

Which of the following investigators was (were) responsible for the discovery that in DNA from any species, the amount of adenine equals the amount of thymine, and the amount of guanine equals the amount of cytosine?

#Question id: 1425

#Unit 4. Cell Communication and Cell Signaling

During metastasis, cells may undergo an epithelial-to-mesenchymal transition whereby there is a(n):

#Question id: 5735

#Unit 8. Inheritance Biology

Aneuploids may arise through nondisjunction, the failure of homologous chromosomes or sister chromatids to separate in meiosis. Following some statement are correct.

A)  Meiosis I non-disjunction leads to produce all gamete become aneuploidy

B) Meiosis II non-disjunction leads to produce half of gametes n+1 other half normal haploid

C) Meiosis I non-disjunction leads to produce half of gametes n+1 other half n-1

D) Either meiosis I or meiosis II non-disjunction leads to produce all aneuploidy gamete

#Question id: 12633

#Unit 6. System Physiology – Plant