Answer:
Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant. Asexual reproduction produces plants that are genetically identical to the parent plant because no mixing of male and female gametes takes place.
Explanation:
Self-pollination is when pollen from the same plant arrives at the stigma of a flower (in flowering plants) or at the ovule (in gymnosperms). There are two types of self-pollination: in autogamy, pollen is transferred to the stigma of the same flower; in geitonogamy, pollen is transferred from the anther of one flower to the stigma of another flower on the same flowering plant, or from microsporangium to ovule within a single (monoecious) gymnosperm. Some plants have mechanisms that ensure autogamy, such as flowers that do not open (cleistogamy), or stamens that move to come into contact with the stigma. The term selfing that is often used as a synonym, is not limited to self-pollination, but also applies to other types of self-fertilization.
Are all bacteria unicellular, multicellular or eukaryotic
What is the electrical charge of the nucleus of an atom that has 11 protons , 12 neutrons , and 11 electrons ?
Answer:
The 11 positive protons cancel out the 11 negative electrons, and the overall charge of the atom is zero. So it neutral
Explanation:
I hope this helps!!
The nucleus of an atom has only protons and neutrons. Since the neutrons are neutral, the charge on the nucleus, in this case, would be +11.
What is the atomic charge?The difference between the number of electrons and protons in an atom is defined as the charge on that particular atom. An atom has three sub-atomic components. These are electrons, protons and neutrons.
The electrons are negatively charged, the protons are positively charged and the neutrons are neutral.
Because the neutrons are neutral, the increase or decrease in the number of electrons or protons affects the charge on an atom. If the number of protons is higher, the atom will be positively charged. If the number of electrons is higher, the atom will be negatively charged.
The protons and neutrons are present in the nucleus of an atom and the electrons are present in atomic shells.
Therefore, in a nucleus with 11 protons, and 12 neutrons, the charge will be +11
Read more about atomic charge, here https://brainly.com/question/5308494
#SPJ6
Which process begins with the replication of DNA in the nucleus of a cell?
A. cell division
B. energy capture
C. protein synthesis
D.cellular respiration
The process that begins with the replication of DNA in the nucleus of a cell is cell division, which is present in option A, and in the cell division phase, the cell divides to form daughter cells.
What is cell division?Cell division is a process in which the cell first grows in the G1 phase of the cell cycle, then replicates DNA in the S phase, then enters the G2 phase, and finally enters the mitosis or cell division phase. The DNA replication starts in the S phase, and in this phase, the DNA divides to form two DNA strands, so that in the division phase, each daughter cell gets parental DNA.
Hence, the process that begins with the replication of DNA in the nucleus of a cell is cell division, which is present in option A, and in the cell division phase, the cell divides to form daughter cells.
Learn more about cell division here.
https://brainly.com/question/29773280
#SPJ6
*
For most of human existence, the population grew slowly because
1
A) food was scarce.
B) predators were abundant.
C) disease killed many people.
OD) all of the above
your brain and neurons are in constant action, sending billions of ___________and________messages each day to keep everything, from deep recesses of the brain to the remote wilderness of your toes in touch
halp me ;-;
Answer:
Until recently, most neuroscientists thought we were born with all the neurons we were ever going to have. As children we might produce some new neurons to help build the pathways - called neural circuits - that act as information highways between different areas of the brain. But scientists believed that once a neural circuit was in place, adding any new neurons would disrupt the flow of information and disable the brain’s communication system.
In 1962, scientist Joseph Altman challenged this belief when he saw evidence of neurogenesis (the birth of neurons) in a region of the adult rat brain called the hippocampus. He later reported that newborn neurons migrated from their birthplace in the hippocampus to other parts of the brain. In 1979, another scientist, Michael Kaplan, confirmed Altman’s findings in the rat brain, and in 1983 he found neural precursor cells in the forebrain of an adult monkey.
These discoveries about neurogenesis in the adult brain were surprising to other researchers who didn’t think they could be true in humans. But in the early 1980s, a scientist trying to understand how birds learn to sing suggested that neuroscientists look again at neurogenesis in the adult brain and begin to see how it might make sense. In a series of experiments, Fernando Nottebohm and his research team showed that the numbers of neurons in the forebrains of male canaries dramatically increased during the mating season. This was the same time in which the birds had to learn new songs to attract females.
Why did these bird brains add neurons at such a critical time in learning? Nottebohm believed it was because fresh neurons helped store new song patterns within the neural circuits of the forebrain, the area of the brain that controls complex behaviors. These new neurons made learning possible. If birds made new neurons to help them remember and learn, Nottebohm thought the brains of mammals might too.
Other scientists believed these findings could not apply to mammals, but Elizabeth Gould later found evidence of newborn neurons in a distinct area of the brain in monkeys, and Fred Gage and Peter Eriksson showed that the adult human brain produced new neurons in a similar area.
For some neuroscientists, neurogenesis in the adult brain is still an unproven theory. But others think the evidence offers intriguing possibilities about the role of adult-generated neurons in learning and memory.
if wrong report me
Plant cells are classified as
pluripotent
omnipotent
multipotent
totipotent
Answer:
pluripotent i think sorry if I'm wrong
an organism that has had its genes altered by adding or removing genetic material
The annual depletion in the value of a tangible is known as
Answer:
The annual depletion in the value of a tangible is known as depreciation
Explanation:
Depreciation of foreign currency occurs in conditions of fixed exchange rates by reducing the undervalued value of money, after which there is no official announcement by the monetary authorities to determine the lower value of the domestic currency according to which stable currency/devaluation, but additional foreign trade restrictions are introduced.
During which stage of meiosis do threads line up at the equator
1.what is the function of fat and oil in the body
2.what is the function of mineral salts in the body
3what is the function of water in the body
Answer:
1. The body uses fat as a fuel source, and fat is the major storage form of energy in the body.
2. helping to strengthen certain structures or bringing oxygen to the body's cells.
3. Your body uses water in all its cells, organs, and tissues to help regulate temperature and maintain other bodily functions.
Answer:
answer above
hope it helps
What human impact is causing more intense weather patterns and is directly
correlated with the industrial revolution? *
Ocean Acidification
Pollution
Genetic Modification
Climate Change
Answer:
climate change ejejejejejek
What is a solute????
Answer:
the minor component in a solution, dissolved in the solvent.
Explanation:
Answer:
solute;the minor component in a solution, dissolved in the solvent.
Explanation:
How do scientists plan to use copy number variants and identical twins to determine the roots of diseases? In your response, use the words: gene
Identical genes have the same genetic material and the same genes. So if they both have a disease it's likely that it's genetic.
Scientists plan to use copy number variants (CNVs) and identical twins to determine the genetic differences between them and the cause of genetic disease as CNVs are variations in the copies of a gene in an individual's genome.
What is the significance of copy number variants?Scientists use copy number variants (CNVs) to study the genetic diseases in twins and CNVs are variations in the copies of a gene in an individual's genome, but in identical twins, they have the same genetic makeup. By analyzing the CNVs in twins, scientists can identify the genes that may be involved in the disease and how they contribute to its development.
Hence, scientists plan to use copy number variants (CNVs) and identical twins to determine the genetic differences between them and the cause of genetic disease as CNVs are variations in the copies of a gene in an individual's genome.
Learn more about the copy number variants here.
https://brainly.com/question/29844397
#SPJ2
Can someone please help me answer this question?
Answer: Are fur color and eye color in mice inherited traits?
I think.
Explanation:
During the metropolitan era of the 1900s, which of the following was a major reason why people moved to cities?
O A. To change governments
O B. To escape religious persecution
O C. To end pollution
O D. To find jobs
Answer:
The answer is D.
Explanation:
People moved to the cities to find jobs because they could not find jobs anywhere else. Most people go their work in factories. Many of the jobs where unsafe and many people lost fingers or other body parts.
Answer:
D. To find jobs
Cities provided more job opportunities that people were interested in taking advantage of since majority at the time only farmed
What is the original source of energy that drives changes in the weather?
Group of answer choices
ocean currents
the Earth's core
the Sun
air temperature
Answer:
Air temperature
Explanation:
Air tempurature drives all forces of weather on Earth.
Phylum Mollusca has organisms with tubed feet.
Answer:
The phylum of mollusks includes more than 50000 known species, found in freshwater ... Echinoderms have a water vascular system originally used to collect and ... by expanding or contracting their rows of tube feet in a particular sequence.
Explanation:
true
Can the negative transcription factor be used more than once?
This is when organisms coexist by sharing different resources within their habitat.
Answer:
resource partitioning
Explanation:
Resource partitioning is the division of the limited resources to avoid the competition in ecology chain. The organisms are competing to have limited resources, so they need to find a way of coexisting together and not to endanger each other.
This partitioning is good because it shows how species who have the same needs can live together in the same ecological community.
Explain how the passing of traits to offspring is different in asexual reproduction and sexual reproduction. Give a brief example of each asexual and sexual in your response.
Answer:
in asexual offspring are the same due to the same genetic codes, but in sexual offspring are a combination of the mother and fater create mixed genes
Give SOME EXAMPLES OF NATURAL CYCLE CHECKPOINTS .
Answer:
For example, delays in mitosis are often ascribed to 'activation' of the mitotic checkpoint, a descriptor that fails to recognize that the checkpoint by definition is active as the cell starts mitosis. Conversely, the completion of mitosis in the presence of misaligned chromosomes is often automatically interpreted to indicate a defective checkpoint, even though in the absence of critical testing alternative interpretations are equally likely. In this article, we define the critical characteristics of checkpoints and illustrate how confusion generated by the inconsistent use of terminology may impede progress by fostering claims that mean very different things to different researchers. We will illustrate our points with examples from the checkpoint that controls progression through mitosis
Explanation:
Answer:
Below
Explanation:
G1 checkpoint, also known as the Start or restriction checkpoint or Major Checkpoint; the G2/M checkpoint; and the metaphase-to-anaphase transition, also known as the spindle checkpoint.
What happens during translation?
Answer:
B
Explanation:
in translation, DNA is translated into RNA
I will mark brainiest who ever answers first !!
Please answer both of them in the pic above :) I think I know the answer just want to make sure I’m correct!
100 POINTS!!
Why does the spectrum of light traveling from a distant galaxy shift from a shorter wavelength to a longer wavelength?
A. because it has to travel through dense interstellar clouds
B. because of the effect of the Earth’s atmosphere
C. because of the presence of black holes in its path
D. because of the combination of the expansion of the fabric of space over the years and the receding velocity of the galaxy
Answer I think d
Explanation:
Answer:
The answer is D.
Explanation:
because of the combination of the expansion of the fabric of space over the years and the receding velocity of the galaxy
The bacteria in the picture below falls into which category?
Staphylo
Spirilla
Bacillus
Coccus
Answer:
B: Spirilla
Explanation:
The answer is Spirilla
The products of photosynthesis that begin cellular respiration are
Answer:
d
Explanation:
WILL GIVE BRAINLIEST !! (question from ED20)
In this lab, you will explore the microscopic process of building proteins from RNA. Instead of working with variables, you will focus on the steps of that process. What investigative question will you answer by exploring this process? Write your question below.
Answer:
What steps occur inside the cell to build proteins?
Explanation:
Hope this helped
RNA is the single-stranded molecule that determines the sequence of amino acids to build up the polypeptides. Transcription and translation are the two processes through which the DNA will convert into the sequence of amino acids.
In the lab, the steps of processes are being focused on. The investigatory questions of the experiments include:
How are the proteins formed using the information given by the RNA molecule?How are the processes of central dogma, transcription, and translation are involved in the formation of protein?What are the steps involved in the building up of proteins within a cell?Thus, the investigatory question in a laboratory experiment generally starts with 'how' and 'what.'
To know more about RNA, refer to the following link:
https://brainly.com/question/1423363
Which of the following is not a part of Cell Theory?
a. Plant cells are the only cell that are a part of the Theory.
b. Cells are the basic unit of structure and function in living cells.
c. New cell come from existing cells.
d. All living things are made up of one or more cells.
Answer:
a.Plant cells are the only cell that are part of the cell theory
Explanation:
all cells are part of the cell theory. despite what kind they are
Which two statements describe advantages of genetic engineering? A. A genetically engineered crop that is resistant to insect pests could also harm helpful insects. B. Crops can be genetically engineered to have useful traits that are not found in wild populations, hy C. Pollen from genetically engineered crops grown on farms can spread to nearby wild plants. D. A genetically engineered crop that is resistant to pests can be grown without chemical pesticides, !NEED HELP FAST!
Advantages of genetic engineering:-
A genetically engineered crop that is resistant to insect pests could also harm helpful insects.
Crops can be genetically engineered to have useful traits that are not found in wild populations.
What is a genetically engineered crop?These are plants used in agriculture, the DNA of which has been modified using genetic engineering methods.
Genetic engineered methods include:-
Delivery of sequences hosted in T- DNA binary vectors.Tissue cultureTo know more about genetically engineered plants here
https://brainly.com/question/5757079
#SPJ2
IMPORTANT!1! DUE TOMORROW
Explain how 38 ATP are produced through the process of aerobic cellular respiration. Be sure to include the major energetic events in glycolysis, the conversion of pyruvate to Acetyl-CoA, the Krebs cycle, and the electron transport chain.
.................................................................