Answer:
CENTROMERE
Explanation:
The CENTROMERE is the primary constriction region where the identical DNA molecules are most tightly bonded to each other during mitosis and meiosis.
The typical chromosome in metaphase is composed of two sister chromatids joined by the centromere.
Surrounding the centromere, we can find the kinetochores. These are laminar proteinic structures forming a plate where the spindle and kinetochore fibers will join during chromatids separation.
The position of the centromere defines the chromosomes as acrocentric, metacentric, or submetacentric.
Anything that causes disease is called a
O virus
O protist
O pathogen
O gene
name two ways in which roundworms are anatomically similar to arthropods
What are two outcomes of this pairing that increases genetic variation
Answer:
It is the last option
Explanation:
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Red-green color blindness is a human X-linked recessive disorder. Jill has normal color vision, but her father is color blind. Jill marries Tom, who also has normal color vision. Jill and Tom have a daughter who has Turner syndrome and is color blind. a. How did the daughter inherit color blindness
Answer:
From her mother's (Jill's) father.
Explanation:
The age of rock as determined by the other rock surrounding it is known as ______________.
A) absolute age
B) carbon dating
C) Law of Superposition
D) relative age
Answer:
B)CARBON DATING
Explanation:
Is human reproduction controlled by the nervous system? True or false.
Answer:
True.
Explanation:
What are the reasons why people are challenging the relevance of the Voting Rights Act today? Do you agree or disagree with these reasons?
Which of the following kinds of cells perform basic functions such as obtaining energy from food?
Plant cells, but not animal cells
Animal cells, but not plant cells
Both plant cells and animal cells
Neither animal cells nor plant cells
Answer:
Both plant and animal cells
Explanation:
Answer:both plant cells and animal cells
Explanation:generally, cells obtain energy from food during cellular respiration where glycolysis takes place
An electric current is generated when a coil of wire passes through a magnetic
field. A device for detecting this current is a
1 generator
2 turbine
3 calorimeter
4 galvanometer
Describe what the plant looks like, including descriptions of any flowers or seeds, so that the farmer or rancher could identify the plant. Discuss the typical habitat for this plant. Where is this plant most likely to be found
Fire and Mello conducted an experiment where they added no gene X RNA (b), anti-sense gene X RNA (c) or double stranded gene X RNA (d) to C. elegans embryos. They then did a hybridization experiment examining gene X mRNA levels in the embryo. Square (a) is a no probe control. How does this act as a control
Answer:
The correct answer is - It shows that an RNA probe is necessary to get a signal.
Explanation:
A probe is a specific single-stranded sequence of DNA or RNA that recognizes its complementary sequence in a particular sample genome for synthesis. The RNA probe is placed into close contact with the given sample under a specific environment that allows the RNA probe sequence to hybridize with its complementary sequence.
In this case, square a is the condition where no RNA probe is persent whereas all three other conditions have some sort of RNA probe, however, in C there is no Gene X probe but their probe present. To get a signal in hybridization RNA probe is required and that can be used as control as it can be used to compare if a signal is received or not.
Alleles are described as ____________________. homologous chromosomes homologous chromosomes alternate versions of a gene alternate versions of a gene alternate phenotypes alternate phenotypes environmental factors that affect gene expression
Answer:
The correct answer is - alternate versions of a gene.
Explanation:
In a cell, if there are two copies of each chromosome, these are called homologous chromosomes, one come from the father and the other comes from the mother, which helps in promoting the variety and stability of a species.
Different or alternate versions of genes are possible that can result in two phenotypes for the same trait, these alternate versions called alleles. Alleles can be dominant and recessive.
ILL GIVE BRAINLIEST why do some medications developed to work on viruses not work on a mutated form?
Answer: They adapt and become resistant
Explanation:
Just as many organisms adapt to survive the main goal of a virus is to also survive by mutating it’s becoming resistant to previous medicine
Hope this helps
An Inflammatory response typically includes: Group of answer choices increased activity of phagocytes in an inflamed area inhibiting the release of white blood cells from bone marrow release of substances to decrease the blood supply to an inflamed area reduced permeability of blood vessels to conserve plasma
Answer:
increased activity of phagocytes in an inflamed area
Explanation:
An inflammatory response is the way the body defends itself against attacks by microbes, physical or chemical agents. In other words, this is how organisms defend and inhibit damage from attacks. The inflammatory response allows high phagocyte activities in the inflamed area. Phagocytes are immunity-related cells that attack foreign and invasive substances, bacteria and dead cells.
Assume similar data for the motion of the blood in a carotid artery which connects the aorta to the brain. Estimate how many beats of the heart it will it take the blood to get from your aorta to your brain. (Assume that the distance from your aorta to your brain is 30 cm.)
Answer:
4 beats
Explanation:
The number of beats of the heart that will take blood from Aorta to The Brain
n = Distance from Aorta to brain / distance per beat
Given that distance per beat = 7.5 cm ( calculated value outside scope of question using the data attached below)
n = 30 cm / 7.5 cm
= 4 beats
50 POINTS AND BRAINLIEST IF CORRECT!!!
Question 29 (3 points)
Predict a change in the Earth's surface or effect observed at each of the following for
1 point each:
- TRANSFORM BOUNDARY
- DIVERGENT BOUNDARY
- CONVERGENT BOUNDARY
Answer:
Divergent boundaries occur along spreading centers where plates are moving apart and new crust is created by magma pushing up from the mantle. Picture two giant conveyor belts, facing each other but slowly moving in opposite directions as they transport newly formed oceanic crust away from the ridge crest.
Perhaps the best known of the divergent boundaries is the Mid-Atlantic Ridge. This submerged mountain range, which extends from the Arctic Ocean to beyond the southern tip of Africa, is but one segment of the global mid-ocean ridge system that encircles the Earth. The rate of spreading along the Mid-Atlantic Ridge averages about 2.5 centimeters per year (cm/yr), or 25 km in a million years. This rate may seem slow by human standards, but because this process has been going on for millions of years, it has resulted in plate movement of thousands of kilometers. Seafloor spreading over the past 100 to 200 million years has caused the Atlantic Ocean to grow from a tiny inlet of water between the continents of Europe, Africa, and the Americas into the vast ocean that exists today.
Explanation:
NOT MY WORDS! BUT I HOPE IT HELPS!
What is the mechanism by which binding of testosterone to the testosterone receptor leads to upregulated gene transcription
Answer:
This binding causes a conformational change in the receptor which enters into the nucleus and binds DNA to activate transcription
Explanation:
Testosterone is a steroid hormone responsible for inducing protein synthesis and growth of tissues with androgen receptors. Testosterone receptors, also known as androgen receptors, are a class of nuclear receptors activated by binding androgenic hormones (e.g. testosterone) in the cytoplasm, whose binding induces a conformational change of the receptors that are subsequently translocated to the nucleus. Within the cell nucleus, these activated receptors form homodimers that bind DNA in order to promote the transcription of target genes capable of regulating cell growth, cell cycle progression and survival.
13. Which kingdom is known as a decomposer? A. Fungi B. Plantae C. Protista D. Animalia Dentisthenia
Answer:
fungi
Explanation:
.......................
Answer:
I think it's D
Explanation:
Have a Nice Day
During frog gastrulation, involution occurs at the Group of answer choices endometrium. blastopore blastocoel. trophoblast. archenteron.
Answer:
blastopore
Explanation:
Involution is the second stage after invagination during frog gastrulation. Involution occurs at the blastopore when the marginal zone cells get to the tip of the blastopore, make an inward turn and then move along the inner exterior of the outer cells sheets.
This means that the cells found at the lip of the blastopore and always undergoing change and the first of these cells to develop into the dorsal lip are the endodermal cells. Next are the mesoderm cells that form the Notochord.
Light penetrates the clear water of the open ocean more deeply than it does lake
water. Phytoplankton is found deeper in the open ocean than in freshwater lakes.
What does this observation best indicate?
A Phytoplankton provides nutrients to consumers in the ecosystem.
B Phytoplankton reduces the light available to organisms at lower depths.
C Phytoplankton populations are limited by their ability to photosynthesize.
D Phytoplankton population growth is limited by the presence of marine salts.
The given observation best indicates that the phytoplankton provides nutrients to consumers in the ecosystem.
What do you mean by Ecosystem?An ecosystem may be defined as a place or an area where organisms of different species are present together and interact with one another for their need.
Phytoplanktons belong to lower trophic levels in the aquatic ecosystem. The organisms of higher trophic levels depend on it for the need of energy.
Therefore, the given observation best indicates that the phytoplankton provides nutrients to consumers in the ecosystem.
To learn more about the Ecosystem, refer to the link;
https://brainly.com/question/26551655
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Which statement is true of human cultures? O A. All human societies share the same cultural traits and practices. O B. Every human has a unique set of cultural traits and practices. O C. Culture includes a society's knowledge, customs, and achievements. O D. Cultures are groups of people united by blood relationships. SUBMIT
Answer:
B. Every human has a unique set of cultural traits and practices.
Explanation:
Culture can be defined as the general way of life of a group of people living together in a particular location or society.
Basically, culture comprises of beliefs, values, behaviors, language, dressing, cuisine, music, symbols, arts, social habits, knowledge, customs, laws pertaining to a particular group of people living together in a society.
This ultimately implies that, culture are acquired and passed from one generation to another.
A cultural trait can be defined as the smallest characteristics of human activity (actions) that is mainly acquired socially and transmitted from one generation to another through various modes of communication.
This ultimately implies that, these unique behavioral informations or characteristics and beliefs acquired by people socially are transmitted from one individual or group of people to another.
Hence, the statement which is true of human cultures is that every human (race) has a unique set of cultural traits and practices that were acquired from the environment and society.
Which of the following factors may contribute to a population maintaining Hardy-Weinberg equilibrium
A There are no mutations in the DNA of the population.
B There are individuals migrating into or out of the population.
C The population is interbreeding with another species.
D The population size is very small.
Answer:
1. There are no mutations in the DNA of the population.*
2. The brown color is an adaptation that is being selected by the environment.
3. The number of individuals displaying each phenotype in both the current generation and the offspring.
4. The recessive phenotype in this population may serve as an adaptation in this environment.
5. A population of turtles that routinely breeds with another closely related species of turtle.
Explanation:
Good luck ♡
Distribution of Traits Quick Check
The factor that may contribute to a population maintaining Hardy-Weinberg equilibrium is there are no mutations in the DNA of the population. So, the correct option is A.
What do you mean by Mutation?The sudden, stable, and inheritable changes in the genetic material of an organism, are called mutations.
There are some assumptions of Hardy-Weinberg equilibrium. They are.
The population is large.The members of the population mate randomly with each other.No migration occurs between populations.No new mutations are favorable. No survival or reproductive advantage.Therefore, the factor that may contribute to a population maintaining Hardy-Weinberg equilibrium is there are no mutations in the DNA of the population.
To learn more about Hardy-Weinberg genetic equilibrium, refer to the link:
https://brainly.com/question/3406634
What is the rapid change in a membrane's potential caused by the depolarization of a neuron?
Answer:
During depolarization, the membrane potential rapidly shifts from negative to positive. As the sodium ions rush back into the cell, they add positive charge to the cell interior, and change the membrane potential from negative to positive.
Explanation:
2. A scientist wants to clone a molecule bearing UniProtKB accession number P43657. How will he come to
know about the following?
I. Exact genomic location of the molecule under investigation
II. Coding and noncoding segments of the molecule
III. Untranslated regions of the molecule
Answer:
II. Coding and noncoding segments of the molecule
Explanation:
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Each trait a person has, such as eye or hair color, is ultimately the result of a single allele in DNA.
True
False
Answer:fałsz
Explanation:
Answer:
False
Explanation:
I just took the test
Rheumatoid arthritis is commonly associated with the presence of rheumatoid factor autoantibodies in the bloodstream. This indicates that rheumatoid arthritis is likely to be a. an infective process. b. caused by bacterial infection. c. an autoimmune process. d. because of an enzymatic defect.
Answer:
The correct answer is - c. an autoimmune process
Explanation:
Rheumatoid arthritis is a disease or condition that affects the joints mainly by swollen, and painful joints. It is an autoimmune disease as the person's own immune system attacks the body.
The presence of rheumatoid factor autoantibodies states that it is an autoimmune process. There are other autoantibodies also associated with this type of arthritis that are rheumatoid factors (RF), anti‐keratin antibodies (AKA), anti‐filaggrin antibodies (AFA), and anti‐perinuclear factor (APF).
Crabs have paddle-like appendages to help them swim called
———————————————
Answer:
The correct answer is - Swimmerets.
Explanation:
Swimmerets are small paddle-like appendages that are modified pairs of legs near the rare. or attached to the abdomen. These paddle-like appendages are help crabs to swim and also helps in carrying and aerating eggs.
These are present in lobster, and shrimps as well as swimming crabs. These are the modification of the legs of the crabs in order to better swimming and brooding of the eggs.
in a school 58% of the total number of students are boys in the number of girls is 814 how many number of students are in the class
Answer:
See below.
Explanation:
Given that 58% of the students are boys, 42% must be girls.
42% = 0.42.
x = unknown number of students
0.42x = 814
x = 1938 (about equal to)
What happens to animals because of plastic trash in the ocean ?
Answer:
They suffocate and choke because of the plastic waste, they also feel trapped in there and sometimes smaller animals get stuck in there
Answer:
Fish, seabirds, sea turtles, and marine mammals can become entangled in or ingest plastic debris, causing suffocation, starvation, and drowning. ... Plastic waste kills up to a million seabirds a year. As with sea turtles, when seabirds ingest plastic, it takes up room in their stomachs, sometimes causing starvation.
Explanation: