NWHSU Embryology Exam 1 Questions
And Answers
What is the leading cause of mental retardation birth defects? Alcohol use during
pregnancy
Preventing birth defects has to happen prior to conception T or F T
Embryonic development is directed by ____________ Genomes
What are genomes? They conta...
What is the leading cause of mental retardation birth defects? Alcohol use during
pregnancy
Preventing birth defects has to happen prior to conception T or F T
Embryonic development is directed by ____________ Genomes
What are genomes? They contain all of the information required to make an individual
Information encoded in the DNA are in the form of ____________ Genes
Approx. how many genes are in the human body? 23,000
Genes have various levels of regulation T or F T
, NWHSU Embryology Exam 1 Questions
And Answers
At the level of the gene what regulation happens in gene expression Gene transcription
regulation
At the level of RNA transcribed from a gene what regulation happens in gene expression?
RNA's are regulated if they will reach the cytoplasm and become messenger RNA's
At the level of mRNA's what regulation happens in gene expression? mRNA's may be
selectively translated
At the level of proteins made from mRNA's, what regulation happens in gene expression?
Proteins may be differentially modified
Chromatin is made of __________ and _____________ Complex of DNA and histones
If DNA is tightly coiled, what cannot happen? Transcription
When chromatin appears as beads of nucleosomes on a string of DNA, how is it referred?
Heterochromatin
, NWHSU Embryology Exam 1 Questions
And Answers
When euchromatin is present, DNA can be transscribed T or F T
The promoter region of a gene binds ____________ for initiation of transcription, contains the
__________ box RNA polymerase; TATA
_________ that contain DNA sequences will be transcribed and translated into proteins
Exons
What two sites designate the code for the first amino acid in a protein? Transcription and
translation initiation sites
The 3' untranslated region includes a ________addition site Poly A
What 3 things does the 3' untranslated region participate in? -Stabilizing mRNA
-Allows it to exit the nucleus
-Permits its translation into protein
, NWHSU Embryology Exam 1 Questions
And Answers
Where does the RNA polymerase II bind? Promoter region
In order for RNA polymerase II to bind, the polymerase requires additional proteins called
____________ Transcription factors
Transcription factors have a specific ____1______ binding domain and a ______2_______
domain. These ____3____ or ____4____ transcription of the gene after the binding of its
_____5___ or _____6_____ 1- DNA
2-transactivating
3-activate
4-inhibit
5-promotor
6-enhancer
Transcription factors active gene expression by causing the __________ complex to unwind.
Also by releasing the __________ so that it can transcribe the DNA template. Finally, preventing
the formation of new ___________ DNA nucleosome; polymerase; nucleosomes
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller UpperClass. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $18.49. You're not tied to anything after your purchase.
