Answer:
Variegated leaves usually have one color on the inner part of the foliage and a second color along the edge or "margin." These are some of the best examples of plants with bi-colored foliage that you can include a few in your landscaping to spice up your flower beds.
C
Explanation:
what is the effect of Dideoxycytidine on the replication of viral DNA.
Answer:
Several 2',3'-dideoxy-3'-thiapyrimidine nucleosides were studied for their ability to inhibit hepatitis B virus (HBV) DNA replication in a HBV-transfected cell line (2.2.15). 2',3'-Dideoxy-3'-thiacytidine (SddC) and 5-fluoro-2',3'-dideoxy-3'-thiacytidine(5-FSddC) were found to be the most potent anti-HBV compounds of those examined. Both compounds resulted in nearly complete cessation of viral DNA replication at 0.5 microM, as monitored by the absence of both intracellular episomal and secreted viral DNAs. The HBV-specific RNAs were not reduced at concentrations that completely blocked HBV DNA replication, suggesting that the inhibitory target is HBV DNA synthesis. The antiviral action of SddC and 5-FSddC was reversible. The concentration of SddC and 5-FSddC required to inhibit 50% of 4-day cell growth in culture was 37 microM and more than 200 microM, respectively. Unlike 2',3'-dideoxycytidine, these two compounds do not affect mitochondrial DNA synthesis in cells at concentrations lower than that required to inhibit cell growth. In view of the potent and selective antiviral activity, both SddC and 5-FSddC should be further evaluated for the treatment of human HBV infection.
Explanation:
Which statement best describes the relationship between an allele and a gene?
A
An allele is a variation of a gene that can be expressed as a phenotype.
B
An allele is a segment of a DNA molecule that controls replication of a gene.
C
An allele is the primary protein made by a gene found in a developing embryo.
D
An allele is the part of a gene that attaches to messenger RNA molecules.
Answer:
A) an allele is a form of a gene. There are at least two alleles for any given gene.
Explanation:
in your own words, write the definition for Ribosomes (what does it do and what type of RNA is it made of?)
Answer:
Ribosomes are structures made of rRNA and proteins. They are the site of protein synthesis (where mRNA and tRNA meet).
Explanation:
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Please helppp
Answer:
“Hard limits” to population growth are things like food, water, energy, technology, living space, other basic needs and economic factors which limit people’s ability to access these things.
“Soft limits” to population growth are things like education, birth control, the desire for a better life individually and a better global future for humanity, religious celibacy or chastity or abstinence, female empowerment and economic participation, the suffering already caused by overpopulation and the desire to avoid further suffering, malnutrition or non-lethal starvation which reduces sexual libido, pollution and other man made causes of involuntary sterility or low sperm count or low fertility, desire to save the environment, aversion to pain and suffering when understood that population growth causes both.
Countries with better quality of life and access to food and basic needs often have lower birth rates and lower population growth. This shows that soft limits can actually be more effective than hard limits to stop population growth. You have plenty of countries in Africa running into hard limits and having some of the highest fertility and population growth rates at the same time. They also suffer massive problems like war, poverty, disease and low standard of living. This goes to show that running into the hard limits will pretty much let things get as bad as they can get before it stops population growth. The hard limits won’t stop all the suffering caused by overpopulation but will make enough people suffer TO DEATH that the population doesn’t grow. People fear pain, thus the soft limits are more effective when they understand that population growth was responsible for pain or suffering and avoid it.
A third-level consumer must be which type?
Carnivore
Herbivore
Producer
Decomposer
Answer:
i think answer is producer
Organisms of either extreme characteristic dying out while organisms with the medium characteristic have a higher fitness is identified as?
Answer: Stabilization selection
Explanation:
Natural selection involves the differential survival and growth of organisms which have suitable traits to survive in unfavorable or adverse environment. Such traits are passed on to the next generation. Stabilization selection is a type of natural selection in which the nature selects the non-extreme phenotypic traits. Middle traits are selected and such organisms grow and reproduce. Example can be given that of human babies in which babies with low weight lose more heat and babies with high weight are difficult to be delivered from the pelvis. Therefore, babies with middle weight are expected to survive more than that of low or middle weight.
A 38-year-old mother of three presents to her primary care office with complaints of fatigue. She feels that her energy level has been low for the past 3 months. She was previously healthy and taking no medications. She does report that she has gained about 10 lb and has severe constipation, for which she has been taking a number of laxatives. A TSH is elevated at 25 mU/L. Free T4 is low. She is wondering why she has hypothyroidism. Which of the following tests is most likely to diagnose the etiology?
A. Antithyroid peroxidase antibody
B. Antithyroglobulin antibody
C. Radioiodine uptake scan
D. Serum thyroglobulin level
E. Thyroid ultrasound
Answer:
A. Antithyroid peroxidase antibody
Explanation:
The most common cause of hypothyroidism is autoimmune thyroiditis, also known as chronic lymphocytic thyroiditis or Hashimoto's disease. This condition (autoimmune thyroiditis) is caused by damage of the thyroid gland, which occurs when antibodies of the immune system attack this gland. The thyroid peroxidase test is an enzyme immunoassay widely used to measure the level of autoantibodies against thyroid peroxidase. Patients with chronic thyroiditis often display a positive thyroid peroxidase test. On the other hand, thyroid ultrasound is useful for the initial evaluation of painless thyroiditis in order to distinguish nodules or multinodular goiter. Antithyroid peroxidase antibodies are commonly observed in individuals suffering autoimmune thyroiditis, whereas antithyroglobulin antibodies are observed in different thyroid disorders and autoimmune diseases. Finally, a radioiodine uptake scan measures the amount of radioactive iodine accumulated in the thyroid gland, which is useful only for diagnosing early‐stage of Hashimoto's thyroiditis.
____________________________ is the process in which humans chose the desired traits of an organism.
a
Artificial selection
b
Natural selection
c
Biology
d
Variation
1. In 1970, the U.S. Congress established The Environmental Protection Agency (EPA) to oversee all of the following, EXCEPT: *
A.pollution problems
B.building new nuclear power plants
C.establish new environmental policies
D.research solutions to environmental issues
Answer:
B
Explanation:
True or false, DNA contains the nitrogenous bases adenine , uracil, guanine, and cytosine.
Answer:
True
Explanation:
Trust
which is the method of estimating fish in a pond
Explanation:
There is a popular sampling method called capture – recapture or 'Lincoln Index' or 'Pieterson's Method' which is used to estimate the size of an animal or human population.
Through photosynthesis, plants
A convert starch to sugar
B convert radiant energy
to chemical energy
C turn water into fructose
D All of the above
Answer: I think its all of the above
Explanation:
photosynthesis is the process through which light energy is converted into either chemical energy or sugar. ... Some of the sugar is also stored for use later, by being converted into starch.
Photosynthesis in plants converts solar energy into chemical energy using electrons and protons from water.
At the end of photosynthesis, a plant ends up with glucose (C6H12O6), oxygen (O2) and water (H2O). ... They can even put the glucose into other sugars — such as fructose — to make a plant's fruit sweet. All of these molecules are carbohydrates — chemicals containing carbon, oxygen and hydrogen.
Assuming that the Earth has a gravity of 1 and Jupiter has a gravity of 2.9, what would your weight be on Earth if you weighed 300 lbs on Jupiter?
Answer:
300/2.9 = x/1
300*1 = 2.9x
300 = 2.9x
103.448275862 lbs = x
Explanation:
If they have a female child, what is the chance that she will be born with red-green colorblindness?
Answer:
female child - 1/200 or 0.5%
male child - 1/12 or 8.33333%
Explanation:
It's a common problem that affects around 1 in 12 men and 1 in 200 women.
I need a argument to: An organism has two copies of a gene for each feature.
Answer:
Since genes come in more than one version, an organism can have two of the same alleles of a gene, or two different alleles. This is important because alleles can be dominant, recessive, or codominant to each other. I hope this helps
A man is HH for a trait, while his wife is hh. What will their children
Explanation:
I hope what I have drawn on the picture will help you understand:)
Which of the following is/are true about energy? (Select all that apply)
energy is only found in fuels
energy cannot be recycled
energy is never destroyed
energy changes form
Answer:
1 is wrong. 2 is right. 3 is true. 4 is true.
Explanation:
how the animals and plants of a healthy ecosystem are organized and interact.
Answer:
A healthy ecosystem consists of native plant and animal populations interacting in balance with each other and nonliving things (for example, water and rocks). ... Decomposers break down dead plants and animals, returning vital nutrients to the soil. Plants take up these nutrients, along with water, through their roots.
Explanation:
Some one plss HELP!!
In the cell cycle, cells frequently pause for some time before undergoing mitosis. What reasons do you think this happens?
Answer soon a possible please!
Bacteria in the soil can release____
back into the air
-oxygen
-hydrogen
-nitrogen
-carbon dioxide
Answer:
Explanation:
nitrogen
Answer:
nitrogen
Explanation:
If fertilization occurs which hormone triggers the thickening of the endometrium
a.estrogen
b.progesterone
Answer: B. Progesterone
Explanation: trust me;)
Which of the following best describes what carrying capacity is?
A
The quantity of marine life a limited water resource can sustain.
B
The maximum number of a population that an ecosystem can sustain.
C
The total amount of greenhouse gases a specific ecosystem can sustain.
D
The minimum number of predators a specific geographic area needs to sustain itself.
B. The maximum number of a population that an ecosystem can sustain.
What Are Alleles? Where Do alleles come from?
Answer:
An allele is one of two more versions of a gene. An individual inherits two alleles for each gene,one for each parent.
Explanation:
Part-1
An allele is a variant form of a gene. Though the term allele was originally used to describe variation among genes, it now also refers to variation among non-coding DNA sequences.
For example: an allele is the gene that determines hair color.
Part-2
One allele for every gene in an organism is inherited from each of that organism's parents.
Learn more:
brainly.com/question/23660342
Una característica de la Rosa es
Answer:
Las rosas son erguidas, trepando o arrastrando arbustos, los tallos de los cuales suelen estar copiosamente armados con motas de varias formas y tamaños, comúnmente llamados espinas. Las hojas son alternas y pinnadamente compuestas (es decir, formadas por plumas), generalmente con foliolos ovalados que están fuertemente dentados.
Explanation:
Hope it helps :)
Help please I will mark brainlist!!
Answer: i think the answer c
Explanation:
Which earthquake wave travels the fastest and arrives first?
a) S-wave
b) tension wave
c) P-wave
d) shear wave
Answer:
C) P-wave
Explanation:
P waves travel the fastest and are the first to arrive from the earthquake. In S or shear waves, rock oscillates perpendicular to the direction of wave propagation. In rock, S waves generally travel about 60% the speed of P waves, and the S wave always arrives after the P wave.
The female gametes are called__________. *
sperm
ova
Answer:
Woman's gametes are called Ova. Sperm is what a mans gamete is.
Explanation:
What is the purpose of the digestive system?
1. Create energy
2. Swallow food
3. Break down food so nutrients can be absorbed
Answer:
3. Break down food so nutrients can be absorbed
Explanation:
the reasoning is when you digest something your body is breaking down the food into small chuncks so that the nutrients can be absorbed easier
As fast as you can, name the planets in order from the sun.
Answer:
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Explanation:
Thenks and mark me brainliest :))
Answer: mercury, Venus, earth mars, Jupiter, Saturn, Uranus, Neptune,
and 15 years ago Pluto
Explanation: i should get extra for saying pluto
Explain the four main principles of natural selection
Answer:
Reproduction: Individuals mate to produce the next generation.
Individual variation: Individuals differ in various characteristics.
Different needs: What helps one survive does not always help another.
Resource competition: There are limited resources desired by other individuals and species.
Explanation: