Answer:
The correct answer is - due to the law of segregation.
Explanation:
In the given case the genotype of Rr and as we know R is a dominant characteristic for round seeds and r represents the recessive allele for wrinkled seeds in a pea plant. So if a plant has Rr in its genotype it means it is a phenotypically round pea plant due to dominance in this heterozygous case.
The law of segregation states that two alleles of a gene of a specific trait will be distributed randomly and there is an equal chance of each allele to end up in the gametes, similarly in this case both alleles can be segregated to gametes and it is a random process.
Which of the following best describe the term “crossing over”?
A. n exchange of information between two homologous chromosomes
B. molecular interaction between two sister chromatids
C. molecular interaction between two non-sister chromatids
D. A separation of two sister chromatids
Answer:
A - An exchange of information between two homologous chromosomes
Explanation:
If a molecule of DNA has 30% Adenine how much of the other bases will be present?
Thymine: 30% Cytosine: 15% Guanine: 15%
Thymine: 30% Cytosine: 15% Guanine: 15%
Thymine: 30% Cytosine: 20% Guanine: 20%
Thymine: 30% Cytosine: 20% Guanine: 20%
Thymine: 15% Cytosine: 30% Guanine: 30%
Thymine: 15% Cytosine: 30% Guanine: 30%
Thymine: 20% Cytosine: 30% Guanine: 30%
Answer:
If a DNA molecule has 30% Adenine the percentage of the other bases is Thymine: 30% Cytosine: 20% Guanine: 20%.
Explanation:
When the percentage that a base has in a DNA molecule is given, the percentage of the other bases can be known using the Chargaff's base pair rule.
A DNA molecule has the information of the genome of a living being, according to a specific sequence of its nitrogenous bases adenine, guanine, cytosine and thymine.
Chargaff was able to establish that in a DNA molecule the ratio of purine : pyrimidine of 1:1, so there must be the same amount of thymine as adenine and a similar amount of guanine for the cytosine, taking into account the complementarity of bases.
Taking into account the law of the base pair, if in a DNA chain there is 30% of Adenine, in the molecule there is:
Adenine 30%. Thymine 30%. Cytosine 20%. Guanine 20%. Total ..... 100%In this case, the Chargaff rule is useful to determine the percentage of nitrogenous bases that exist in a DNA molecule, knowing the percentage of a single base.
10. What do prokaryotes use cell division for? Mark all that apply.
I Growth
Reproduction
W Repair
m Development
Which example is not an organism?
bacteria
lung
mold
human
Answer:
Lung
Explanation:
In these experiments, researchers are taking brain cells from patients with disorders like autism and schizophrenia and using them to grow tissue which produce organoids miniature versions of the body's organs. How might studying these brain organoids help patients with these disorders?
Answer:
It could help in knowing in detail the etiology of the pathology, in order to evaluate the prognosis and its most appropriate treatment.
Explanation:
When cultivating the cells, it is possible to observe if they worsen the pathology before certain means or stimuli, or even the consumption of drugs and derivatives.
Not only with that, the beginning of this pathology is called etiology, when the etiology is studied in detail, the ideal treatment is the one that is determined, since the focus to attack is known so that these pathologies do not advance or even revert .
pls help i need this ASAP i’ll give branliest
Answer:
Include the sun giving energy to plants
Explanation:
Please mark brainiest
Answer:
the first one include the sun giving plants energy
4
Which of the following is true of asexual
reproduction?
A. It requires seeds.
B. It requires flowers.
C. It requires only one parent.
D. It requires sperm and eggs.
please answer this question for me
Answer:
Structure Z is the cell wall and is very strong. It keeps out pathogens because of its thick layer
Explanation:
pls help me ill give brainliest .
the level of biological organization where factors such as sunlight, rainfall and temperature, as well as living organisms, come into play is the
the level of biological organization where factors such as sunlight, rainfall and temperature, as well as living organisms, come into play is the
The biotic (living) members of an ecosystem are highly dependent on such abiotic factors which include the weather, sunlight, water depth, salinity, and the availability of nutrients. Hence, the presence or absence of even one factor can greatly affect the ecosystem.
What is Biological Organization?
Scientists employ a concept called biological organization to classify live organisms into smaller and larger components. It aids in the organization of living things and the understanding of the components of life systems. From the smallest to the greatest level, each one symbolizes a different part of the organization. The stages of biological structure include of
AtomsMoleculesCellsTissuesOrgansOrgan SystemsOrganismPopulationCommunityEcosystemBiomeTo learn more about Biological Organization
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Which cell structures are MOST DIRECTLY involved in protein synthesis in cells?
cell wall and nucleus
vacuoles and ribosomes
cell membrane and cytoplasm
nucleus and ribosomes
Answer FAST
8. What types of data can be controlled in an experiment? Give an explanation of each.
Which is not a characteristic of populations?
A. They are subject to limiting factors such as food supply and predators.
B. They grow and decline over time.
C. They interact with other populations in an ecosystem
D. They consist of all the species in a defined area.
Answer:
D is not a characteristic of populations
Explanation:
Populations are one species in a defined area, not all.
The one that is not a characteristic of the population is they consist of all the species in a defined area. The correct option is D.
What is a population?The human population has grown enormously. It has primarily accomplished this by producing a surplus of food and learning how to deal with illness. The fastest growth occurred between 1955 and 1975.
This is a term that refers to the human population that lives in a specific geographical area. The map depicts the concentration of the human population on the planet from all of the continents depicted.
A population pyramid is a diagram that depicts the total number of organisms that are successfully living and interacting with one another in a specific location at a given time. As a result, the population pyramid predicts that the population is increasing.
Therefore, the correct option is D. They consist of all the species in a defined area.
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help please and thank you
Answer:
d
Explanation:
using stem cells from is controversial, and people believe they should not be tampered with, even if the procedure could save lives
Stem cell lookup presents remarkable promise for understanding basic mechanisms of human improvement and differentiation, as properly as the hope for new redress for illnesses such as diabetes, spinal cord injury, Parkinson’s disease, and myocardial infarction. However, human stem cell (hSC) research additionally raises sharp moral and political controversies. The derivation of pluripotent stem cell strains from oocytes and embryos is fraught with disputes about the onset of human personhood. The reprogramming of somatic cells to produce brought on pluripotent stem cells avoids the moral issues particular to embryonic stem cell research. In any hSC research, however, dilemmas arise involving sensitive downstream research, consent to donate materials for hSC research, early medical trials of hSC therapies, and oversight of hSC research. These moral and policy issues want to be discussed along with scientific challenges to make certain that stem mobile lookup is carried out in an ethically fabulous manner. This article affords a crucial evaluation of these issues and how they are addressed in contemporary policies.
Stem cells are the body's uncooked substances — cells from which all other cells with specialized functions are generated. Under the right prerequisites in the body or a laboratory, stem cells divide to shape more cells known as daughter cells.
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Oceans are small rivers that join the main river. *
true
False
what is the chloroplasts?
A scientist is studying specialized cells that help pump blood. Which cells is she most likely studying?
neurons, which are a type of muscle cell
cardiac cells, which are a type of muscle cell
epithelial cells, which are a type of blood cell
white blood cells, which are a type of blood cell
Answer:cardiac cells
Explanation:
The heart pumps blood and cardiac cells are found in the heart
what is abberant motor behavior
Answer:
according to whether the "activity disturbance"
Explanation:
brainest plz
Answer:
dunno tbh g
Explanation:
u l, gu zh, li y, et al. genomic landscapeof cd341hematopoietic cells in myelo-dysplastic syndrome and gene mutationprofiles as prognostic markers.proc natlacad sci usa. 2014;111(23):8589-8594.
A set of malignancies known as myelodysplastic syndromes (also known as myelodysplasia) prevent your blood stem cells from developing into healthy blood cells.
What is myelodysplastic syndrome?A collection of conditions known as myelodysplastic syndrome (MDS) include dysplasia of bone marrow myeloid lineages, inefficient hematopoiesis, and frequent development of acute myeloid leukemia (AML). CD34(+) hematopoietic stem/progenitor cells (HSPCs) from eight patients of refractory anemia with excess blasts (RAEB), a high-risk subtype of MDS, were subjected to whole-genome sequencing. 96 protein-coding genes had mutations that were determined to be similar to those reported in AML in terms of nucleotide substitution patterns. In six of the eight cases where subclones were found, clonal architecture analysis indicated them, but HSPC expansion status was heterogeneous according to mutation detection of CD34(+) versus CD34(-) cells.Learn more about the myelodysplastic syndrome with the help of the given link:
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trichodysplasia spinulosa polyomavirus small t antigen synergistically modulates s6 protein translation and dna damage response pathways to shape host cell environment
trichodysplasia spinulosa polyomavirus small t antigen synergistically modulates s6 protein translation and dna damage response pathways to shape host cell environment is
Unknown
Trichodysplasia spinulosa is a disfiguring skin disease caused by the trichodysplasia spinulosa–associated polyomavirus (TSPyV).¹ Like other polyomaviruses, TSPyV expresses the large T and small T (sT) antigens, but how these proteins regulate trichodysplasia spinulosa pathogenesis is unknown.
What is trichodysplasia spinulosa polyomavirus?
Trichodysplasia spinulosa is a rare cutaneous condition that has been described almost exclusively in immunocompromised patients, typically organ transplant recipients, on immunosuppressive medication regimens.
It is also known by many other names, including viral-associated trichodysplasia, viral-associated trichodysplasia, pilomatrix dysplasia, and ciclosporin-induced folliculodystrophy, although the latter name is incorrect. A total of 32 cases has been documented in the medical literature as of the beginning of 2016. Despite its rarity, TS is thought to be underdiagnosed, and the rising number of patients using immunosuppressive medication regimens raises the possibility that its occurrence may increase.According to some sources, TS is a developing infectious disease.
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Which way of preparing food models a physical change that happens to food within the digestive system
Select one
Grinding fruit in a blender
Burning a marshmallow over a flame
Frying an egg in a skillet
Freezing a juice in an ice pop mold
Answer:
im pretty sure its
Frying an egg in a skillet
Explanation:
im so sry if im wrong have a good day/night (:
There are several million different types of organisms on Earth. Which of
the following is the best way to organize them? *
Answer:
Taxonomic classification.
Explanation:
Taxonomic classification is the best way to organize these organism because this Taxonomic classification provides a method to study easier. This Taxonomic classification was done on the basis of similarities and differences. those animals which have similarities are put in the same group while on the other hand, those organisms which are different from one another are classify in different groups.
Which of the following is the primary employer of natural resource professionals aPrivate landowners b Local governments c United States Department of Agriculture (USDA) DState and national parks
Answer:
I could be wrong, but I believe the answer is D) State and National parks
The primary employer of natural resource professionals is State and national parks. The correct option is D.
What is natural resource?Natural resources are those that are derived from nature and used largely unaltered.
This encompasses the origins of desirable traits like those used for business and industry, aesthetic appeal, scientific curiosity, and cultural significance.
The earth provides us with useful raw materials called natural resources. Natural resources cannot be created by humans because they exist in nature.
All around the United States, there are careers for those with a background in natural resources.
Local, state, and federal governments, including the National Park Service, U.S. Department of Agriculture, and U.S. Department of the Interior, are the main employers of conservation scientists and foresters.
Thus, the correct option is D.
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Which type of cells thrive in an isotonic solution?
a animal cells
b cells with a cell wall
c plant cells
d both plant and animal cells
Answer:
A 0.9% solution of NaCl (saline) is isotonic to animal cells. When exposing animal tissues to solutions, it is common to use an isotonic solution such as Ringer's buffered saline so as to prevent osmotic effects and consequent damage to cells.
Explanation:
hope this help
pick me as the brainliest
Answer:
the answer is A
if you look it up it gives you everything you need to know I hope that helps
Identify the body planes and cavities in these diagrams.
The body planes and cavities in the diagram are: (11) Sagittal body plane; (12) Coronal body plane; (13) Transverse body plane; (14) Dorsal cavity; (15) Thoracic cavity; (16) Abdominal cavity; (17) Pelvic cavity; and (18) Ventral cavity.
The body planes are the geometrical lunes through which the body can be divided into two halves. These are hypothetically decided planes. There are three types of body planes: coronal, sagittal and transverse.
The body cavities are the hollow spaces that hold the organs and tissues of the body. These cavities are lined and separated by membranes. There are two large body cavities in humans: the dorsal and ventral. They further constitute of various small body cavities.
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what structure pull the chromosomes apart
Answer:
Spindles
Explanation:
brainliest?
Answer:
mitotic spindle
Explanation:
Which is the best description of the two organisms highlighted in orange?
The best description of the two organisms highlighted in orange is based on the fact they share a common ancestor with the rest of the phylogenetic tree.
What are the evolutionary relationships in a phylogenetic tree?The evolutionary relationships in a phylogenetic tree make reference to the types of association based on common ancestry between different taxonomic groups which may be evidenced in the tree.
Therefore, with this data, we can see that the evolutionary relationships in a phylogenetic tree can be evidenced by the presence of a common ancestor in the clade.
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what type of symbiotic relationship do rhizobium and plants have?
PLEASE HELP ASAP
95 POINTS!!!!
Answer:
5729.23 cubic meters
Explanation: