Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

-Impact of Genomics-

QuestionAnswer
Which of the following is NOT true of a maternal effect gene? It must be located on the X chromosome.
Which of the following statements about nurse cells are true? They are able to express both alleles present in the female.
Which of the following statements regarding epigenetic inheritance is FALSE? Epigenetic inheritance can temporarily affect an individual
In dosage compensation: An X chromosome can be inactivated. Gene expression can be increased from a single X chromosome. Gene expression can be reduced from a pair of X chromosomes. This is the correct answer. All of the above.
Which of the following statements regarding X inactivation in mammals is FALSE? This process ensures a homogenous phenotype in heterozygotes.
You attempt to replicate the experiment shown in Fig 7.6, but an incompetent lab assistant inoculated the flasks in step 3 from entire plates rather than single clones. What result would you expect? You would see both fast and slow alleles in every sample.
A female mouse has been identified in which the vast majority of active X chromosomes were inherited from her father. Which of the following statements may explain this? The Xce allele inherited from her father is particularly weak.
A mutation in Xist which prevents binding to proteins that promote compaction would interfere with which stage of X inactivation? Spreading
Monoallelic expression of a gene: Occurs when the gene is imprinted.
A mouse heterozygous at the Igf-2 locus is dwarf and has 50% dwarf progeny when mated to a homozygous Igf-2m animal. Which statement about this animal is FALSE? The Igf-2m allele in this mouse came from its mother.
Imprinted genes: A) Provide an example of epigenetic inheritance. B) Are near differentially methylated regions. C) Are only transmitted by one parent. This is the correct answer. D) A and B E) None of the above.
You develop an inbred strain of mice that display one of two distinct syndromes. What evidence might lead you to believe that these mice are mutant for a gene or genes affected by imprinting? All mice of the same litter have the same syndrome.
A pattern of transmission where all offspring have the same phenotype as their mother is consistent with which type of non-Mendelian inheritance? Extranuclear inheritance.
The gene dosage effect which affects eye color in fruit flies (see Chap 4) is most likely due to which phenomenon? Dosage compensation.
Both X-linked genes and extranuclear inheritance produce different results in reciprocal crosses. How can you distinguish between them? Extranuclear traits can be transmitted from an unaffected mother to an affected son.
For a trait known to be caused by a mitochondrial gene variant, there may be an occasional female that can transmit different phenotypes to her progeny on an apparently random basis. What situation might you suspect? She displays heteroplasmy for this trait.
In S. cerevisiae, mutations which cause a segregational petite phenotype: Are transmitted according to Mendelian rules
Neutral petite mutations: Are an example of extranuclear inheritance.
Mitochondrial mutations in humans tend to affect some tissues more than others. Which is the most likely explanation? Some human tissues have higher energy demands than others.
Which piece of evidence provides the strongest support for the endosymbiosis theory? Genes in chloroplasts and mitochondrion have a high degree of similarity to bacterial genes.
Symbiotic infective particles: A) Tend to be inherited in an extranuclear pattern. B) Have their own DNa. C) Appear to be similar to viruses in function. This is the correct answer. D) All of these.
In maternal effect inheritance, the phenotype of the mother determines the genotype of the offspring. False
Gene products produced by nurse cells are controlled by both alleles of the female. True
Any individual having only one copy of a gene is the same as any other individual having only one copy of a gene. True
TsiX would be expected to play a role in the spreading phase of X inactivation. False
Created by: lydiajanetaylor
Popular Biology sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards