Some of the genes control receptors called integrins, which help cells attach to and communicate with one another, allowing formation of specialized organs and complex body plans.
Some of these genes control both cardiovascular development and skeletal development, suggesting the intriguing possibility that the giraffe's stature and turbocharged cardiovascular system evolved in concert through changes in a small number of genes.
The team also found that two clusters
of these genes control different kinds of aggression: one directed at strangers and strange dogs, and the other directed at the owner and other dogs in the household.
When Murphy compared the genes turned off and on in oocytes and body cells of the same worm, however, she saw that two completely different sets
of genes controlled oocyte and body - cell aging in C. elegans.
Researchers say the newly found level
of gene control is likely to apply to all tissues.
This changes, among other things, the pattern
of genes controlled by STAT5 and the cells begin to divide uncontrollably resulting in a STAT5 - dependent leukemia.
Just like how a light can be controlled by multiple switches to influence its intensity and colour, the team identified hundreds
of genes controlled by multiple promoters, causing alternate versions of that gene to be produced.
Number
of genes controlling a quantitative trait in a hybrid zone of the aposematic frog Ranitomeya imitator.
Number
of genes controlling a quantitative trait in a hybrid zone of the aposematic frog Ranitomeya imitator Vestergaard, J. S., E. Twomey, R. Larsen, K. Summers, and R. Nielsen.
Furthermore, orthologs
of genes controlling pistil retention in maize were misregulated in bsl1 - 1 mutants.
The octopus also has an abnormal number
of genes controlling neuron development and interactions between neurons — processes likely associated with learning and intelligence.
Despite highly elevated levels of Oct4 protein following treatment with 8 - Br - cAMP, no change in transcription
of genes controlled by Oct4 heterodimers (i.e. Oct4 itself, FGF4) was observed.
Importantly, there is a clear signature of the parents» sensitivity to high CO2 in the molecular phenotype of the offspring expressed by the differential regulation
of genes controlling the circadian rhythm indicating adaptive potential through natural standing variation.
Dogs offer a unique system for the study
of genes controlling morphology.
Not exact matches
However, a study performed at Edinburgh University found that much
of our predisposition toward determination, sociability, self -
control, and sense
of purpose is in our
genes.
Or more troubling, the
genes that they contain — the
genes that
control those processes
of becoming resistant — can break free
of the bacteria and be taken up by other bacteria.
In the future, ancestors
of the ancient Trojans have devoted themselves to
gene manipulation and have implanted the DNA that
controls fiscal irresponsibility and bouzouki music into modern Greeks.
Control of heredity and sex by the manipulation
of genes and chromosomes.
First, an adult cell would be removed from a patient and the DNA
of that cell altered to
control and direct the types
of gene expression the nucleus is capable
of supporting.
I'm not gay, nor lesbian, so I can only imagine what it would be like for those who are born with wrong
genes, body, etc., to have to live in a world so full
of hatred for something they have no
control over.
But still most people would tend to agree that a program
of controlled eugenics that involved exterminating humans with defective
genes is immoral even though it could accelerate evolution an better the species.
They asked the question, What
controls the activity
of a single
gene, turning it on or off?
But it is not actually the crucial question, which is, What
controls the activity
of the complex interacting set
of genes, which produces a nerve cell or a muscle cell?
In other words, they now have total
control over that genome and can examine the function
of every
gene, seeing if each part
of the genome serves a biological function or is redundant.
The worry is that «the technical ability to disaggregate and recombine genetic, gestational and rearing connections and to
control the
genes of offspring may... undermine essential protections for offspring, couples, family and society.»
What all these have in common is that, without any central
control, individual units (
genes, cells neurons or workers) respond to simple, local information, in ways that allow the whole system (cells, brains, organisms or colonies) to function: the appropriate number
of units performs each activity at the appropriate time.
We've been hearing about better male birth
control for years now, but in recent weeks two new promising options have come to light: RISUG (reversible inhibition
of sperm under guidance), being developed by an Indian scientist, Sujoy Guh, and the discovery
of a
gene, Katnal1, critical for sperm production; if scientists can tweak the
gene with a pill, sperm production will be stalled.
Isolation is distressful for rat and mouse babies and has all sorts
of ill effects like disorganizing stress response systems and undermining the expression
of genes that
control anxiety (McEwen, 2003; Meaney, 2001).
A total
of 150 women with a history
of two or more recurrent miscarriages and 20 fertile
control women with no history
of pregnancy losses had buccal swabs taken for DNA analyses
of 10
gene mutations [factor V G1691A, factor V H1299R (R2), factor V Y1702C, factor II prothrombin G20210A, factor XIII V34L, beta - fibrinogen -455 G > A, PAI - 1 4G / 5G, HPA1 a / b (L33P), MTHFR C677T, MTHFR A1298C].
More than three
gene mutations among the 10
genes studied were observed in 68 %
of women with recurrent miscarriage and 21 %
of controls.
Using
gene - sequencing technology, researchers established that the precise segment
of the pup's DNA «switched on» by the act
of grooming was the part that
controlled the future function
of the hippocampus, which processes stress hormones.
The reliability and stability
of these methods were described by Wu et al. 27 Illumina tag sequencing
of the 16S rRNA
gene V4 - V5 hypervariable region was performed at the Marine Biological Laboratory in Woods Hole, Massachusetts, using established methods.28, 29 Details
of sequencing methods, quality
control and filtering, and statistical modeling are presented in the eAppendix in the Supplement.
UT Southwestern biochemists studying mouse models found that the two proteins − steroid receptor coactivators 1 and 2 (SRC - 1 and SRC - 2)--
control genes for pulmonary surfactant components that promote the initiation
of labor.
We identify key candidate
genes that may
control rate - limiting steps during lactation and outline future work in the endeavor to discover the biological underpinnings
of poor lactation performance in women attempting to breastfeed.
To do this, the neurons need to make new proteins — a process that is thought to be
controlled by hundreds
of genes.
«If we know how
genes control drug response, we can create a statistical model that shows us what will happen before using the drug,» said Wu, who is also a member
of Penn State's Huck Institutes
of the Life Sciences.
Epigenetic processes are essentially switches that
control a
gene's potentially heritable levels
of protein production but without involving changes to underlying structure
of a
gene's DNA.
The shared patterns
of gene expression in the limbs and phallus are generated in part by a common set
of noncoding DNA, also called «elements» or «enhancers,» which act to
control gene expression in both
of these structures, argues a study published October 1 in Developmental Cell.
These changes, known as epigenetic modifications,
control the activity
of our
genes without changing the actual DNA sequence.
Baylin says certain
genes that
control cell growth get turned down periodically during certain stages
of life, including embryogenesis, when organisms are growing and developing rapidly.
A host
of other
genes, which
control many other cellular processes do not show such abnormal DNA methylation after smoke exposure.
They have crossed two Fleur 11 varieties that mix different bits
of the ancestors»
genes that
control peanut size to see if they can create a larger peanut — one that grows well even in the face
of the prolonged dry spells.
Before this can happen though, Teixeira said that his team will first have to determine whether the Stk11
gene or the other
genes and proteins it
controls are similarly affected in the human form
of BPH.
The scientists also discovered that the stem cells released tiny packets
of microRNA, bits
of genetic material that
control how
genes function.
The feeding tube
of the dying embryos was not forming properly, so researchers at first speculated that the
gene controlled tube development.
To receive funding from Safe
Genes, teams focused on
gene - drive technology must work on
controls plus at least one
of the program's other focus areas — remediation or inhibitors.
Now a
gene that causes such disorders has been found, and it may help unravel a deeper mystery: how it is that the left side
of our brain
controls the right side
of the body, and vice versa.
Besides the low efficiency
of cloning — just 1.7 per cent
of embryos came to term — another challenge to creating transgenic dogs is
controlling where in the nuclear DNA a foreign
gene lands.
This likelihood is quantified as the «heritability,» a number between 0 and 1, where a larger number implies that it is more likely that the shape
of the face is
controlled by
genes.
Psychiatrist Ming Tsuang and his colleagues at Boston University figured that if
genes help
control what people feel when they smoke pot, then genetically identical twins should experience a similar kind
of high or low when they use the drug.