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Quiz #3 answers

Correct answers in bold (5 points) The figure to the right shows a chromosome during mitotic metaphase. Which term best describes the structure of this chromosome? (Note: see bottom left panel of...

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Genetics in the News: Gene Editing

BI311 student Megan Criss shared an interesting article about gene editing from the LA Times – you can read it here! The post Genetics in the News: Gene Editing appeared first on Prof. Denver's...

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HW #6 answers

12.1: (b) Formation of crosslinked thymine dimers. 12.2: Such people are somatic mosaics, a condition that can be explained by somatic mutations in the pigmented cells of the iris of the eye or in...

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Week 6 Reflections

This week we wrapped up a little bit of recombination, then turned our focus toward mutation and then cancer genetics.  We turned attention to the molecular mechanisms of DNA recombination, overviewing...

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A few example questions from last year’s Midterm #2

Here are a few questions from last year’s Midterm #2 to help with your studying.  Answers will appear on the blog in a few days. #7. (3 points) In domestic cats, an X-linked gene influences coat...

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Answers for questions from last year’s Midterm #2

#7: D, dosage compensation #13: D, 0.0001 #20: Cyclins tether specific target proteins and bring them to the complex; CDKs phosophorylate those target proteins to change their structure/function. #21:...

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Answers to HW #7

8.4: MALISASY (in single-letter amino acid code)   8.9: 5’-AUU = Isoleucine at amino terminus of protein; UUA-3’ = Leucine at carboxy terminus   8.10: This encodes the alternating polypeptide Cys-Val...

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In-Body Gene Editing article

Thanks to student Alexis Frantz for sharing this interesting news story about human gene editing.  You can find it here. The post In-Body Gene Editing article appeared first on Prof. Denver's Genetics...

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Answers to HW #8

Chapter 9: 9.3: (a) One mutation that might cause the constitutive phenotype is a mutation in an operator region of the enzyme-coding gene that makes it insensitive to repression. The second is a...

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Week 8 Reflections

We started the week discussing gene regulation – how cellular systems regulate the amounts of protein products (RNA, protein). The famous lac operon system was introduced; this set of genes in E. coli...

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Evolution on the Galapagos

BI311 student Alyx Abraham shared a great article about fast evolution of finches on the Galapagos – check it out here! The post Evolution on the Galapagos appeared first on Prof. Denver's Genetics Blog.

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Quiz #4 Answers

correct answers in bold #1 (5 points) How can the abundance and function of a gene’s products (RNA, protein) be regulated inside the cell? A. At the level of transcription, synthesis of a RNA molecule...

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Quiz #5 Answers

Correct answers in Bold. #1. (5 points) When population size is large and mutation rates are low (~10-8), as an evolutionary force mutation is generally characterized as: A. Strong B. Weak C. Balancing...

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Week 9 & 10 Reflections

We focused on natural selection as an evolutionary-genetic force during the Tuesday lectures of Weeks 9 and 10. Natural selection is a force that can be quantified by considering relative fitness (w),...

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Need a study break?

Check out this CNN special investigation: Scientists perform DNA tests on ‘yeti’ samples The post Need a study break? appeared first on Prof. Denver's Genetics Blog.

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