🏷️ LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION →
Log in
Biology
1
answer
0
watching
80
views

Methylation and IVF

A. What is imprinting and how is it different than regular methylation of genes?

B. Explain how the IVF procedure can cause low birth weight in children that are conceived through IVF.

C. Is IVF more likely to change the embryo or the placenta?

Watch
1
answer
0
watching
80
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Casey Durgan
Casey DurganLv2
28 Sep 2019

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share

Related textbook solutions

Molecular Cell Biology
8 Edition,
Lodish
ISBN: 9781464183393
Biology: Science for Life with Physiology
6 Edition,
Belk
ISBN: 9780134555430
Biology
2nd Edition, 2013
Openstax
ISBN: 9781947172517
Concepts of Biology
OER Edition,
Openstax
ISBN: 9781938168116
Essentials of Biology
5 Edition,
Mader
ISBN: 9781259660269

Related questions

rewrite these information to be like your own world..

Factors such as the timing of conception, sexual position usedand types of food eaten while pregnant were said by some to affectthe sex of a baby. It was not until the 1970s, however, thatscientific methods began to be developed for selectinggender.
One example of such technology is the Ericsson method, which wasdeveloped by Ronald Ericsson in 1975 and continues to be used atclinics today. In the Ericsson method, sperm are placed in a testtube filled with viscous fluid. Since male-producing Y-chromosomesperm swim faster than female-producing X-chromosome sperm, theycan be separated from each other based on their positions in thetest tube and then used for insemination. The Ericsson method isinexpensive, but its success rate is debated, with detractorssaying it has no more than a 50% chance of producing the desiredgender.
Another technique, flow cytometry, began as a means of selectingthe sex of farm animals. It was applied to humans beginning in1995. That method, used by the company MicroSort, a division of theGenetics and IVF Institute, sorts X and Y sperm by staining themwith fluorescent dye. Because of differences in the amount of DNAcontained in the two types of sperm, the dye glows more brightly onX sperm than on Y sperm, allowing equipment to separate them basedon their level of fluorescence. Sperm of the desired type is thenused to impregnate the woman through artificial insemination.
The MicroSort procedure costs several thousand dollars, andaccording to the company, is accurate roughly 75% of the time inselecting boys and around 90% of the time in selecting girls. TheFood and Drug Administration is currently conducting a study ofbabies born through use of the method to determine whether theyhave an unusual number of birth defects.
third technique uses in-vitro fertilization (IVF), mixing parents'sperm and eggs to create embryos in laboratories. In a processknown as preimplantation genetic diagnosis (PGD), cells are thentaken from the embryos to determine gender, and those of thedesired gender are implanted in the woman's uterus. In-vitrofertilization is already used to help infertile couples havechildren, and laboratories use PGD to screen for genetic diseasesin accordance with that purpose.

1. how does royal jelly explain the epigenetic queen phenotype?

2. Methylation of DNA is the best understood mechanism of epigenetics; however epigenetic changes can also occur through modification of histone proteins. What are four things that can be added, post translationally, to histone proteins?

*Histone acetylation generally destabilizes structure; cause it to assume a more open configuration. Histone acetylation is associated with increased transcription.

*Histone methylation influence on transcription depends on context.

*Epigenetic effect of RNA molecules: Xist example

Consider three genes, Gene A, Gene B, and Gene C. Mutants of all three cause defects during early Drosophila development. We want to know how they interact with each other, so we generate null mutations in each of these genes.

In a Gene B mutant, Gene C is not expressed. What is the likely relationship between Gene B and Gene C?

In a Gene C mutant, Gene A mRNA is expressed in a larger part of the embryo than in a wild type embryo. What is the likely relationship between Gene A and Gene C?

In a Gene A mutant, the expression of Gene C and Gene B are unchanged. What does this tell us about the relationship among the genes?

In a Gene B mutant, Gene A mRNA is expressed in a larger part of the embryo than in the wild type embryo. Draw a genetic pathway that explains the relationship among all three of these genes.

Weekly leaderboard

Home
Homework Help 3,900,000
Biology 460,000
Start filling in the gaps now
Log in