1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
snow_tiger [21]
2 years ago
11

Both men and women conceived during the widespread famine of the Dutch Hunger Winter were more likely to be obese by age 5050 an

d more likely to die from stroke or cardiovascular disease. They also experienced more cognitive decline later in life. Fifteen genetic loci associated with growth and metabolic disease were compared between siblings prenatally exposed to the famine and those siblings who were not prenatally exposed.
1. What evidence suggests that these are epigenetic effects?

a. missense mutations within genes encoding histone proteins
b. single nucleotide polymorphisms within loci involved in growth and metabolic disease
c. transposon insertion into loci involved in growth and metabolic disease
d. changes in the methylation patterns of loci involved in growth and metabolic disease

2. Which additional pieces of evidence would help to demonstrate that these effects are due to epigenetic changes?

a. changes in the post-translational modification of metabolic enzymes
b. differences in the expression of metabolic genes
c. mutations in the DNA regions associated with cardiovascular health
d. changes in histone acetylation patterns
Biology
1 answer:
mixas84 [53]2 years ago
4 0

Answer:

1. d. changes in the methylation patterns of <em>loci</em> involved in growth and metabolic disease

2. b. differences in the expression of metabolic genes

d. changes in histone acetylation patterns

Explanation:

Epigenetics refers to the study of heritable changes in gene expression which are not dependent on DNA sequence. Epigenetic mechanisms involve DNA methylation, histone modifications (acetylation, methylation, phosphorylation, etc) and regulatory non-coding RNA (ncRNA) pathways. These epigenetic mechanisms work together and mutually reinforce each other in order to modulate gene expression (either by activating or suppressing gene expression). In consequence, transcriptome data (e.g., genes differentially expressed in particular tissues/cells or stages of development) is an important piece of evidence indicating the existence of epigenetic modulation.

You might be interested in
HELP PLEASE!!!! which of these is closest to the number of molecules of ATP we get from Anaerobic metabolism of one molecule of
dalvyx [7]
You get 2 ATP molecules from anaerobic metabolism
8 0
2 years ago
Que signifie ADN et comment on le prouve?
irakobra [83]

Answer:

<h3>Qu'est-ce que l'ADN ?</h3>

L'ADN (acide désoxyribonucléique) est un type d'acide nucléique qui se distingue par le stockage de l'information génétique de la grande majorité des êtres vivants. Cette molécule est formée de nucléotides et a généralement la forme d'une double hélice.

Il est nécessaire de prélever des échantillons de certains fluides corporels qui peuvent être du sang, de la salive, des ongles, des cheveux ou du sperme. À l'aide de techniques de laboratoire sophistiquées, l'ADN des échantillons est isolé, puis une cartographie est effectuée, ce qui est fait par des équipements appelés "Séquenceurs d'ADN".

Pour le prouver, normalement le rapport d'un examen ADN apporte quels gènes et chromosomes ont été étudiés et l'analyse du généticien à leur sujet. Les résultats sont présentés dans des rapports simples et clairs. Dans les examens de paternité, le résultat est toujours comparatif.

J'espère t'avoir aidé, bonnes études !

7 0
1 year ago
A. The trait for the disease is recessive, and each offspring had a 50% chance of receiving the recessive allele and developing
max2010maxim [7]
The answer to this question is the second option
6 0
3 years ago
EDGE AP BIOLOGY<br><br> Does anyone possess the Cell size lab report?
Svetradugi [14.3K]

Answer:

i do!

Explanation:

3 0
2 years ago
In which sections or section of the kidney is the urine formed? what section of the kidney collects the urine? how does the urin
torisob [31]

In which sections or section of the kidney is the urine formed? 

The final product of filtration, reabsorption, and secretion which is the urine is primarily formed in the renal medulla although the formation of the urine starts with the filtration of blood in the glomerulus then along the proximal tubules, descending and ascending loop of Henle, distal tubules, and collecting ducts. 


What section of the kidney collects the urine? 

The renal pelvis is the main section of the kidney that collects the urine. The renal pelvis arises from the confluence of the collecting ducts forming the renal papilla then the minor calyx and the major calyx and ultimately to the renal pelvis to be transported to the urinary bladder through the ureters.


How does the urine move from the kidney out of the body? 

The urine will be collected in the renal pelvis. With the urine collected in the renal pelvis, the urine moves from the renal pelvis to the urinary bladder through the ureters and will be stored in the urinary bladder. When there is an urge to urinate, the urinary bladder contracts and the urethral sphincter relaxes that allows passage of the urine from the bladder out of the body through the urethra.


In which main regions of the kidney are the glomerulus and the Bowman's capsule located? 

The glomerulus and the Bowman’s capsule are part of the renal cortex. These organs are responsible for the filtration of the blood from the afferent arteriole. The glomerulus and the Bowman’s capsule are not synonymous but rather the glomerulus comes from the afferent arteriole and the Bowman’s capsule functions as a filtration membrane. Together, they are called the renal corpuscle.


In which main regions of the kidney are the collecting ducts and the loop of Henle located?

The collecting ducts are located in the renal medulla whereas the loop of Henle are partly in the medulla, depending on the type of nephron. In superficial cortical nephrons, the dips only up to the outer medulla while in the juxtamedullary nephrons, the glomerulus is near the corticomedullary border wherein more parts of the loop of Henle is in the medulla.

3 0
3 years ago
Other questions:
  • which of the following are factors that both unicellular and multicellular organisms actively balance to achieve homeostasis
    12·1 answer
  • A good way for an adolescent to build and protect her bones is to:
    7·1 answer
  • 15. Processes are: light dependent stage and Calvin cycle. *
    5·1 answer
  • What is evapotranspiration?
    14·2 answers
  • When organisms ingest food, the food is converted into which substance?
    10·1 answer
  • Which best describes nitrogen fixiation
    14·1 answer
  • What is the effect of medicines given to people suffering from viral diseases?
    5·1 answer
  • Lightning is produced in a thunderstorm when there is...
    15·2 answers
  • Cell ______, performs it’s functions, goes thorough ______________ to check mutations in DNA.
    15·1 answer
  • What do wolves eliminate from the population?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!