Answer:
it's true
I hope it's helps you
Yes, it's true. Chromosal sex is currently determined through the chromosal combination.
The following offspring were observed from many crossings of the same pea plants. What genotypes were the parents?
465 purple axial flowers
152 purple terminal flowers
140 white axial flowers
53 white terminal flowers
a) PpAa x PpAA
b) PpAa x PpAa
c) PpAa x ppAA
d) PPAA x ppaa
e) PPaa x ppAA
Answer:
a
Explanation: the genotype is the same
Cross between same pea plants for many generations having genotype PpAa x PpAa because after crossing over parents character having a large number of phenotype in offspring, hence a is the correct option.
What is a genotype?The term "genotype" ranges to an organism's genetic makeup, in other words, it describes an organism's whole gene. The term can also be used to refer to the alleles, or variant forms of a gene, that an organism carries in a more specific meaning.
When crossing of particular traits having genotype PpAa x PpAa because after crossing over parents' character having a large number of phenotypes in offspring.
The genotype of a person is their own DNA sequence. More specifically, the two alleles a person inherited for a particular gene are referred to using this term.
Therefore genotype parents PpAa x PpAa offspring have a large number of traits the same as parents and a low number of new traits.
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Describe the disadvantages of an open circulatory system relative to a closed circulatory system.
Explanation:
The disadvantage of a closed circulatory system is that with the blood always contained in vessels, it's under higher pressure. This means it can flow faster, which is necessary for supporting the metabolic rate of more complex animals such as vertebrates. Open circulatory systems are low-pressure systems that cannot meet the needs of a fast metabolism.
You are studying an enzyme that is inactivated by phosphorylation and create a mutant in which the threonine that is normally phosphorylated is replaced with glutamate. Predict the impact of this change on the activity of this enzyme. Group of answer choices
Answer:
always active
Explanation:
Phosphorylation is a posttranslational modification that consists of the addition of phosphate groups to specific amino acids on the protein. Phosphorylation acts as a molecular switch for proteins that are phosphorylated (i.e., in some situations phosphorylation acts to activate protein function, whereas in other situations phosphorylation can inactivate protein function). Phosphorylation modifies the three-dimensional structure of the protein, thereby affecting, for example, the accessibility of the active site of a phosphorylated enzyme to its substrate. Phosphorylation can occur only at the side chains of three amino acids: Serine, Threonine and Tyrosine. In this case, the enzyme is inactivated by phosphorylation on the Threonine residue, so it is expected that the mutant enzyme cannot be phosphorylated, remaining in an active state.
Organisrns that transfer diseases to hurnans are
O hosts
O pathogens
O parasites
O vectors
Growers often wrap potted plants in plastic sleeves prior to shipping. If plants remain in these sleeves too long, their leaves curl and fall off. Imagine you are working at a garden center and have been asked to make a presentation to a local garden club. Unit 5 DQ Question: Explain the processes that may cause the leaves to drop and fall.
Answer:
Shock, age and climate.
Explanation:
The processes that may cause the leaves to drop and fall are shock, age and climate. The plants drop their leaves due to shock when they experience by transplanting from place to another. When the leaves get older having yellow colour so due to no function it falls. The climatic condition is also responsible for the dropping of leaves. Those plants which can't grow in cool season so when the winter comes they shed their leaves and wait for the summer season.
What is DNA??????????
Answer:
DNA, short for deoxyribonucleic acid, is the molecule that contains the genetic code of organisms. This includes animals, plants, protists, archaea and bacteria. DNA is in each cell in the organism and tells cells what proteins to make. ... DNA is inherited by children from their parents.
Explanation:
DNA (Deoxyribonucleic acid) is a molecule present in the nucleus of cells of all living beings and that carries all the genetic information of an organism.
It is formed by a spiral-shaped double strand (double helix), composed of nucleotides.
What is the chain of custody?
A) the order of who gets custody of the crime scene
B) the paper trail of every person that has been in contact with the evidence throughout its seizure, collection, preservation, analysis and
disposition
C) the order of suspects
D) the people who have custody of children until the case is closed
How does energy acquisition in the deep sea differ from energy acquisition near the ocean’s surface?
a.
Organisms in the deep sea acquire energy directly from the sun.
b.
Organisms near the ocean’s surface rely on chemosynthesis rather than photosynthesis.
c.
Organisms in the deep sea do not have direct access to sunlight.
d.
Organisms in the deep sea have no means to obtain energy unless they travel to the ocean’s surface.
Answer:
Organisms in the deep sea acquire energy directly from the sun.
DNA is a nucleic acid involved in heredity, or the passing down of genetic traits from one generation to the next. DNA consists of four different types of nucleotide monomers.Which part of the nucleotides' structure is responsible for the incredible variation that exists amongst all types of organisms
Nitrogenous base DNA consists of four unique nucleotides that each contain one unique nitrogenous base—adenine (A), thymine (T), cytosine (C), or guanine (G).
The specific arrangement of these four bases within the DNA of each organism gives that organism its unique traits; here are the arrangements:
-Adenine is paired with Thymine (think of A for apple and T for tree)
-Cytosine is paired with Guanine (think of C for car and G for garage)
search "DNA base pairs" and go to images for better understanding
The part of the nucleotides' structure is responsible for the incredible variation that exists among all types of organisms are Nitrogenous base DNA consists of four unique nucleotides that each contain one unique nitrogenous base—adenine (A), thymine (T), cytosine (C), or guanine (G).
Who is responsible for passing down of genetic traits from one generation to the next?DNA is a nucleic acid involved in heredity, or the passing down of genetic traits from one generation to the next. DNA consists of four different types of nucleotide monomers.
The specific arrangement of these four bases within the DNA of each organism gives that organism its unique traits and here are the arrangements are mentioned below:
Adenine is paired with Thymine (think of A for apple and T for tree)Cytosine is paired with Guanine (think of C for car and G for garage)Therefore, The part of the nucleotides' structure is responsible for the incredible variation that exists among all types of organisms are Nitrogenous base DNA consists of four unique nucleotides that each contain one unique nitrogenous base—adenine (A), thymine (T), cytosine (C), or guanine (G).
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What test is used to ensure that the results you expect are the same as the results you are observing?
A. Epistatic test
B. Chi-squared test
C. Observational confirmation test
D. Punnett square test
Reset Selection
Answer:
b. Chi Squared
Explanation:
The chi squared test is best to find signifigance between differences in observed and expected values.
Amoeba sisters video recap Biomagnification
Biomagnification refers to the presence of higher concentration of chemical toxins as a result of the accumulation of toxins in organisms.
What is biomagnigication?Biomagnification is best explained as a condition in which the chemical concentration of a toxin is amplified in an organism compared to the environment in which the organism is found.
Biomagnification usually is observed as one goes higher in the trophic levels of organisms.
For example, chemical pollutant found in water may be present at tolerable levels. However, in organisms, living in the water, the concentration of the pollutant is higher as these organisms accumulate these toxins in their tissues.
Therefore, biomagnification refers to the accumulation of toxins in organisms higher than found in their environment.
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The development of DNA technology is bringing profound changes to science, agriculture and healthcare. Provide one example of a DNA technology and provide at least one advantage and one example of a concern or problem associated with its use.
Answer:
The CRISPR-Cas9 genome editing system can be used to edit genes and correct mutations associated with inherited diseases. However, this technology also has the potential to edit genes in germline cells in order to irreversibly modify the human species and the natural evolution of life
Explanation:
The CRISPR-Cas9 (Clustered regularly interspaced short palindromic repeats and CRISPR-associated protein 9) system is a natural prokaryotic defense system used by bacteria to defend against invading DNA. In the laboratory, the CRISPR-Cas9 system has been repurposed to create a versatile genome-editing tool that allows us to modify the genome of mammalian cells in a targeted fashion. The CRISPR-Cas9 is a simple gene-editing tool that consists of a single guide RNA (sgRNA) that guides the Cas9 enzyme to the exact genomic location where Cas9 needs to make a cut, which is then repaired by different DNA repair mechanisms. During DNA repair, nucleotides can be replaced and/or deleted, thereby producing desired genomic modifications. The CRISPR-Cas9 has an enormous potential to repair mutations in genes associated with inherited genetic disorders and cancer (i.e., oncogenes might be reversed in vivo by using this technology). However, the CRISPR-Cas9 genome editing system is also a subject of concern due to its dual use. For example, this technology can be used to modify the genome of germline cells by inducing mutations that can be passed across generations, thereby irreversibly modifying human DNA and altering the normal course of evolution.
Which of the following is an example of an enzymatic cycle?
Answer:
Catabolism
Explanation:
The process of catabolism degrades the bacterial and fungal enzymes into simple inorganic molecules.
A substance, without being a reactant, which speeds up a chemical process is referred to as a catalyst. Enzymes are known as catalysts for biological reactions in living organisms. Although ribonucleic acid (RNA) molecules behave as enzymes, they are usual proteins. Enzymes.
Enzymes carry out the essential role of reducing the activated energy of a reaction — that is, the amount of energy needed to start the process. Enzymes work by attaching and retaining reactant molecules so that the chemical bonding and bonding activities are carried out more easily.
what is haemopoiesis??
Haemopoiesis is from greek meaning “ to make. new blood” •
Explanation:
It refers to the formation of blood cellular. components.
an organism that uses oxygen to break down food to obtain energy
is what a drug does to your body. O a) Irrigation b) Pharmacodynamics c) Excretion d) Pharmacokinetics
Explanation:
Option b is the correct one
What are the main structural supports for the vertebrae
Answer:
Intervertebral Discs
Explanation:
Between each vertebral body is a cushion; the intervertebral disc. Discs absorb stresses the body incurs during movement and prevents vertebrae from grinding against one another. The intervertebral discs are the largest structures in the body without a vascular supply
Answer:
The dorsal hollow nerve cord
Explanation:
The dorsal hollow nerve cord develops into the central nervous system;the brain and spine
give a reason why lack of roughage in diet often leads to constipation
Answer:
The main cause of constipation is intake of a low fiber diet.the bulk and soft texture of fibre helps prevent hard dry stools that are difficult to pass thereby reducing constipation.
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3. When recording medication administered to a client on the medical administration record, always add
next to each medication you deliver.
A. the client's weight
B. the client's initials
C. your initials
D. the client's resting heart rate
Answer:
option B
Explanation:
Answer:
your initials
are the ones that should be in the MAR. since your the one who gave the medication.
silicon and _______ stay in the the outer cells pls tell me fast
Answer:
It could be halogens for example things like fluorine
a special effects artist mixes two different liquids in a bowl. both liquids are white. when she heats the bowl, a new compound forms. will the new compound be a white liquid?
Answer:
if a special effects artist mixes two different liquids in a bowl and they both are too white !
after heats those liquids
its forms curd like substance
its either will be white, its can increase its colour as darkish white or lightly yellowishblack
when she heats the bowl, a new compound forms and it will be white before heating and after heating it may be white or other dark color.
What are the properties of a compound ?A compound composed up of two or more elements which are chemically combined with a fixed proportion by their mass.
For example, Water, Sodium Chloride, Ammonium Chloride etc.
They have fixed melting and boiling points.
Formation of compound is a change in chemical reaction and the components of compound are mixed in a fixed proportion.
Two major types of compounds are covalent and ionic compounds.
Covalent compounds refers to formation of covalent bond among two nonmetals, like water or methane. These molecules are neutral and weak.
When metal react with non metal it form Ionic compounds, are held together by opposite charges, so the bond is stronger than covalent compound.
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What about the structure of DNA allows it to copy itself?
A. It is held together mostly by hydrogen bonds, which are easy to open for replication
B. It has enzymes built into the helix that make a copy when needed.
C. It is double stranded, so each side serves as a template for a new strand.
D. DNA is not copied, it is only passed down through each generation.
Answer:
C. It is double stranded, so each side serves as a template for a new strand
Explanation:
The structure of DNA is double stranded, so each side serves as a template for a new strand. The correct option is C.
What is DNA replication?Replication is the procedure by which the DNA of the genetic code is copied in cells.
Before dividing, a cell must duplicate (or replicate) its a whole genome so that each eventually results daughter cell has its own entire genome.
The DNA replicates itself multiple times during the process of replication. It is a biological polymerization that goes through the steps of commencement, elongation, and termination.
The reaction is catalyzed by enzymes. The main enzyme in the process of replication is DNA Polymerase.
DNA replication occurs in eukaryotic cells' interphase nuclei. At the S-stage (synthesizing) of the cell cycle, DNA replication occurs prior to mitosis.
Thus, the correct option is C.
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how much water was retained by soil C
Answer:
we dont know sorry but i dont know
Please help me with these questions
I will mark the Brillianest
Answer:
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What is a community?
1 all the animals that live in a habitat
2 a single species that lives in a habitat
3 all the species that live in a habitat
4 a population that lives in a single habitat
Answer:
3. All the species that live in a habitat.
A community is where all the species live in a habitat. Hence the correct option is 1.
A community is an ecological term that encompasses all the different species of organisms that coexist and interact within a specific habitat or geographic area. It includes plants, animals, fungi, and microorganisms that share the same environment and form intricate ecological relationships with each other.
These relationships can be competitive, predatory, symbiotic, or other forms of interactions that influence the dynamics and structure of the community. Understanding the composition and interactions within a community is vital in studying the biodiversity, ecosystem functioning, and overall health of a given habitat.
Hence the correct option is 1.
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Lectins often bind their ligands via multiple weak interactions. bind their ligands with relatively low specificity. prevent viruses from binding to their target cells. are carbohydrates that bind to receptor proteins.
Answer:
The correct answer is - B.often bind their ligands via multiple weak interactions.
Explanation:
Lectins are specific types of proteins that identify and bind to specific carbohydrates present on the cell surfaces. They have an essential role in interactions and communication between various cells for identification and recognition.
Binding sites of lectins on the surface of one cell bind to the Carbohydrates on the surface of another cell. A lectin usually has two or more binding sites for carbohydrate units.
Which of the following traits are characteristic of all mammals?
Mammals are air-breathing, warm-blooded, and have a backbone, yet these characteristics do not distinguish them from the rest of the animal kingdom. Mammals have the ability to regulate their body temperature using their metabolism and sweat glands in a way that no other animal can.
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The most basic organization level of life is a ____________. A. membrane B. tissue C. cell D. organ
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The answer is...
C. Cell.
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Some of the largest mountains in the world, including the Himalayas, occur where
Select one:
a.
two oceanic plates diverge.
b.
two continental plates converge.
c.
an oceanic and a continental plate diverge.
d.
an oceanic and a continental plate converge.
Answer:
b. two continental plates converse
hey ,What is biological community answer it .Good night
Answer:
Community, also called biological community, in biology, an interacting group of various species in a common location. For example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.
Explanation:
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Answer:
It's a group of various species in a common place.
For example: a forest of trees and undergrowth plants, lived in by animals and rooted in soil including bacteria and fungi, would make a biological community.
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