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Examen
Psu Bmb 252 Exam | Questions And 100% Correct Answers | Latest Update |Graded A+
What is the complexity of species associated with? 
ANS 
complexity of regulatory regions 
What would happen if a protein responsible for eye development was expressed in a 
wing of a fly? What does this tell us about homologous proteins? 
ANS 
An eye would develop in the wing 
This tells us that homologous proteins are interchangeable 
What differs more between different organisms? 
A. Regulatory DNA 
B. Regulatory proteins 
ANS 
Regulatory DNA
Examen
Psu Bmb 252 Exam 3 | Questions And 100% Correct Answers | Latest Update |Graded A+
PopularWhat is the ECM? 
ANS 
Extracellular matrix 
a network of proteins and polysaccharide chains that are secreted by cells 
What are the two forms of the ECM? What are they each? 
ANS 
ECM of connective tissue= fibrous polymers like collagen 
Basal Lamina= flexible, thin mat of specialized ECM that underlies epithelial cell sheets 
and tubes 
What are the two ways that cells are attached in tissue? 
ANS 
either to the basal lamina or to the ECM and to each other 
What are the 4 main types of junct...
Examen
BMB 251 Exam 2 – Study Guide, Practice Questions & Revision Notes
NuevoBMB 251 Exam 2 – Study Guide, Practice Questions & Revision Notes
Examen
BMB 251 Final Exam – Study Guide, Practice Questions & Comprehensive Revision
NuevoBMB 251 Final Exam – Study Guide, Practice Questions & Comprehensive Revision
Examen
BMB 251 Exam 5Latest 2023 / 2024) Questions & Answers with rationales
BMB 251 Exam 5Latest 2023 / 2024) Questions & Answers with rationales
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Bmb 251 Bundled Exams With Solution
Bmb 251 Bundled Exams With Solution
Examen
BMB 251 Exam 3 - Penn State Study Guide With Complete Solution
BMB 251 Exam 3 - Penn State Study Guide With Complete Solution...
Examen
BMB 251 Exam 3 With Complete Solution
BMB 251 Exam 3 With Complete Solution...
Examen
BMB 251 Exam 1 With Complete Solution
BMB 251 Exam 1 With Complete Solution...
Examen
BMB 251 Exam 2 With Complete Solution
BMB 251 Exam 2 With Complete Solution...
Examen
BMB 251 psu Final Study Guide With Complete Solution
BMB 251 psu Final Study Guide With Complete Solution...
Examen
Bmb251 Exam 3 Lindner Psu | Questions And 100% Correct Answers | Latest Update |Graded A+
What is responsible for forming the nucleolus? 
ANSWER 
Ribosomal RNA genes 
What happens in the nucleolus? 
ANSWER 
rRNA is synthesized; each ribosomal subunit transports through the nuclear pore to the 
cytoplasm; DNA codes tRNA and rRNA; non-coding RNA is assembled 
Why is the reading frame important? 
ANSWER 
We only translate 3 nucleotides at one time. If reading frame is off then different 
proteins are produced
Examen
Bmb251 First Exam Psu | Questions And 100% Correct Answers | Latest Update |Graded A+
Central Dogma: 
ANSWER 
DNA directs DNA replication (replication) and directs RNA synthesis (transcription). 
RNA directs protein synthesis (translation). 
Replication: 
ANSWER 
The use of template mechanism to produce exact duplicate copies 
Transcription: 
ANSWER 
Use of one strand of DNA to make multiple copies of complimentary strands of RNA. 
Translation: 
ANSWER 
use of linear array of bases in mRNA's to direct the synthesis of a specific array of 
amino acids in proteins
Examen
Bmb 251 Lindner Psu Exam 1 | Questions And 100% Correct Answers | Latest Update |Graded A+
What are some basic metabolic functions a cell must do? 
ANS 
Eat "food", eliminate waste, avoid danger, procreate, etc. 
ALL CELLS ARE ENCLOSED IN A..... 
ANS 
Plasma Membrane 
What is a plasma membrane made out of? 
ANS 
Phospholipid bilayer- hydrophobic inner and hydrophilic outside. Controls movement in 
and out of cells through transport proteins 
"RNA World Hypothesis" 
ANS 
RNA was first unit of genetic material, but DNA was more stable so it was preferred to 
hold all genetic mater...