Answer:
The two situations in which it would be important/useful to be able to predict the phenotype and/or genotype of offspring from a cross include Genetic counseling before marriage so as to enlighten the individuals on the importance and to reduce the risk of having sickle cell offsprings.
The other reason is for paternity and maternity tests. The genotypes and phenotypes are important factors in knowing the paternity of individuals due to the knowledge of genotypic and phenotypic constituents of the individual.
which animal look very different when it is grown up from when it was young
Answer:
Explanation:
Animal which looks very different when it is grown up from when it was young is a tadpole.
Hope this picture is clear and easy to understand
plz mark as brainliest!!
What is the current classification of bacteria formerly termed members of the Bethesda-Ballerup group? g
Answer:
Explanation:
This group is made up bacteria that utilizes of citrate and are slow lactose-fermenting. They belong to the family Enterobacteriaceae which share some particular feature with the lactose-fermenting citrobacters.
Thus, they have now been included in the genus Citrobacter with no regards to how fast or slower their lactose fermentation is.
when a vegtalble is place in very salty water it becomes shriviled up why does this happen
The central (Haversian) canal that runs through the core of each osteon is the site of ________. adipose tissue and nerve fibers cartilage and interstitial lamellae blood vessels yellow marrow and spicules
Answer:
Blood vessels and nerve fibers
Explanation:
The Haversian canal serves as the bone tissues and it runs through the core of each osteon. The osteon surrounds the Haversian canal and contain structures called lamellae.
These lamella are made largely of collagen fibers and also various network of rich blood vessels and cells which produces blood cells in the body. Nerve cells which helps in the relay of impulses are also present. The rich contents of the bone gives it its strength and durability.
Answer:
The correct answer is: blood vessels and nerve fibers.
Explanation:
Haversian Canals are a group of tubes that are located in the more peripheral region of the bone, known as the cortical bone. The cortical bone is hard and compact and is composed of several concentric layers of bone cells (osteocytes and osteoblasts) that circle around a haversian canal, which contains capillaries and nerve fibers. This structure is called an osteon.
Haversian Canals are very important for the correct functioning of the bone, as they give the cells their needed blood supply and innervation.
Triangle KLM was dilated according to the ruleDO,0.75 (x,y).
The answer is
A. DO, 0.75 (x,y) = (0.75x, 0.75y)
B. LM is parallel to L'M'.
and C. The vertices of the image are closer to the origin than those of the pre-image.
Answer:
the correct options are A, B, and D
Explanation:
PLSSSS 30 POINTSS BRAINLEST
Answer: The attachment listed some cell organelles,although there isn't a specific question on then but am going to be defining each of them and state their functions as well.
1. The Nucleus; The is command centre of the cell, it is made up of nuleolus, chromosomes, nucleoplasm,nuclear envelope and nuclear lamina.
it contains the genetic/hereditary materials that the cell is made up of.
The Nucleus plays a great role in the control of growth and development of the cell.
The nucleus also coordinates some of the the activities of the cell like cell division and protein synthesis.
2. Cytoplasm; The cytoplasm is one of the cell organelles,it is the liquid portion of the cell,it consists of cell contents between the plasma and the cell membrane. The fluid cytoplasmic material is where many cell organelles are found/suspended fluid. Most activities carried out by the cell occurs in the cytoplasm.
3. Endoplasmic Reticulum; The Endoplasmic Reticulum is one of the cell organelles that have the structure of a network of flattened sacs and tubules and play a crucial role in plant and animal cell. Rough endoplasmic reticulum has ribosomes attached to the cytoplasmic side of the membrane and the smooth endoplasmic reticulum lacks attached ribosomes in them thus giving it the smooth appearance.
The Endoplasmic Reticulum functions in the production, processing, and transport of proteins and in and out of the cell and also the production of lipids.
4. Golgi Body; One of the plant organelles that plays a role in the sorting and organizing the proteins produced and processed by the Endoplasmic Reticulum. these proteins are sorted and packed in vessicles to be used by the body.
5. Mitochondria; (a double membrane organelle). It is otherwise known as the powerhouse of the cell,it produce/generate energy in the form of ATP needed for cellular respiration. These energy produced is used for other cellular metabolic activities.
6. Lysosome (Animal) Chloroplast (Plant); Lysosomes are found in most animal cells, they function by digesting good and garbage,they contains acids that aids this function in the stomach of the cell and when the lysosome is diseased or explodes,the cell stops functioning.
The Chloroplast on the other hand is found in the cells of plants and algae,they play a crucial broke in photosynthesis by capturing the energy from the sun and turning the captured energy into usable forms like sugar,glucose and other organic molecules.
7. Cell Membrane; The cell membrane is the cell organelle that forms a boundary between the cell and the sorounding environment.
The cell membrane as well controls the movement of cellular materials in and out of the cell.
8. Nucleolus; The nucleolus is one of the cell organelles where ribosomes are made. The ribosomes are small grain-shaped organelles that make protein and they are found in the surface of rough Endoplasmic Reticulum. Nucleolus are small and round in structure and are found in the nucleus,
9. Vacoule (Plant Cells) Centrioles (Animal Cells); The vacoule is a storage chamber(reservoir) for wanted and unwanted materials in the cell, the vacoule is found within the cytoplasm and it is enclosed by a membrane that typically contains fluid.
The centrioles on the part of the animal cell is a cell organelle that has a structure of a two hollow cylinders,ring of microtubules next to each other(the centrosome).the centrioles are located just outside the nucleus of the cell.
Centrioles function by producing the mitotic spindles for cell division, and also assisting to pull chromosome pairs apart to opposite end of the cell during cell division.
10. Cell Wall; A protective semi permeable rigid outer layer of nonliving material that surrounds the cells of plants and some other organisms.
The cell wall houses the organelles of the plant cell.
The cell wall functions by giving the cell strength and structure,it's semi permeable nature filters and selectively allows certain materials in and out of the cell.
Answer:
Mark the other dude brainliest
Explanation:
Why is the "dorsal-ventral" axis not synonymous with the "posterior-anterior" axis in the whole human nervous system?
Answer:
The ventral side is towards the belly side
The Dorsal side is back to the belly side
Anterior is Before the belly side
Posterior is after or coming after to the belly side.
Explanation:
The ventral side is associated with the animal or a person belly side which related to the organism digestion and respiratory organs.
The anterior is the before or in front of side position which is associated with the front line of an organism.
The posterior side is related to the after side or it is opposite to the anterior position of an organism.
It is depend on the organism position, that these sides are related to each other in some instances. In some cases these are orthogonal in some times.
What allows enormous lengths of DNA to
be folded inside the nucleus and prevents
chromatin from becoming tangled
during mitosis?
A. chromosome
B. ribosome
C. centrioles
D. nucleosome
Answer:
D
Explanation:
You are interested in studying if scalloped alleles follow the expected Mendelian inheritance patterns. What crosses will best allow you to study the inheritance pattern from a single generation and why?
Answer:
Reciprocal crosses
Explanation:
Reciprocal cross is crossing in all possible ways. Such that a parent used as a male can be further used as a female while the parents used as a female can be used as a male. This cross helps to show if indeed the inheritance follows the simple mendelian pattern of inheritance if not the inheritance is somewhat complex and an allele of the gene has more domineering power over the other when used as a specific parents.
The first cross will be between the parental genotypes to obtain the first filial generation offspring. This crosses will be done on both ways
Example
AA × bb
Where AA is the female and bb is the male
bb × AA
Here bb has been used as female while AA is used as a male
If the offspring of the two crosses are the same there is no reciprocal difference and the pattern of inheritance is mendelian fashion if they are different there is reciprocal differences.
what is cellular affinity in biology?
Answer:
affinity. Attraction between particles. Biology: A measure of the attraction of one biological molecule toward another molecule, either to modify it, destroy it, or form a compound with it. Examples are enzymes and their substrates, or antibodies and their antigens.
Que son las células procariotas?
Answer:
En biología, con el término procariotas se hace referencia a las células que no tienen un núcleo formado, en contraste con las células que han formado un núcleo, las células eucariotas.
Estas células tienen una estructura más simple que las células eucariotas y son de menor tamaño. Externamente, las células procariotas están separadas del medio ambiente por la membrana celular, pero internamente no tienen ninguna otra formación. En su mayor parte, los organismos procariotas son unicelulares y pertenecen al grupo de bacterias.
How did the death of chestnut tree result in the growth of the ecosystem
Answer:
add nutrients to the soil.
Explanation:
The death of chestnut tree result in the growth of the ecosystem because when the chestnut tree dies, the decomposers such as fungi and bacteria start feeding on the dead tree and as a result nitrogenous waste is produced mixed with soil which is the essential nutrient for the plants. These nitrogenous waste is used by the plants to make amino acids and as a result the growth of an ecosystem occurs.
About Galileo Galilei : Why was he allowed to serve his sentence from home?
Early in 1616, Galileo was accused of being a heretic, a person who opposed Church teachings. ... Galileo was sentenced to life imprisonment in 1633. Because of his age and poor health, he was allowed to serve his imprisonment under house arrest.
Explanation:
If the herbivore population in an ecosystem increased, what would most likely happen to the size of the carnivore population? It would decrease. It would increase. It would die off. It would remain the same.
Answer:
I think the Carnivore population would increase
Explanation:
There would be more prey for the Carnivores. Leading to more food, which leads to more mating.
Answer:
well increase because if we look at the food chain or according to it the carnivore would get more food more food leads to mating
hope it helps
Compare the potential energy stored in lipids,proteins, and carbohydrates. In which order does the body look for these molecules as a source of energy.
Answer:
carbohydrate,lipids then protein
To what kingdom do coccidia belong? Monera, Animalia, Protista, Protozoan
Answer:
Protozoan
hope this help you
Which is an example of how the cell membrane of a tube worm maintains a
stable environment?
O A. It communicates with other cell membranes.
OB. It prevents salt from flowing in.
O c. It allows the temperature to change quickly.
OD. It allows large molecules to enter.
Answer:
It prevents salt from flowing in.
Explanation:
so the tubeworm's cell membrane prevents minerals from flowing in and salt is a mineral so it won't allow salt to flow in.
Answer:
it prevents minerals in the water from flowing into the cell
Explanation:
APEX
What can carbon atoms do that makes them different from atoms of the five
other common elements of life?
A. Form compounds with nitrogen and phosphorus
B. Form compounds with hydrogen and oxygen
C. Form polyatomic ions
D. Form four covalent bonds
Answer:
B. is the answer
Explanation:
form compounds with hydrogen and oxygen .
Answer:
Form four covalent bonds
Explanation:
Carbon makes four electrons available to form covalent chemical bonds, allowing carbon atoms to form multiple stable bonds with other small atoms, including hydrogen, oxygen, and nitrogen.
when enzymes in your body digest your food what type of biomacromolecule is at work
Answer:
Fat, starch, sugars and protein.
Explanation:
Enzymes break these biomacromolecule bcoz cells get energy by breaking them.
Answer: Protein.
Explanation:
You are now taking a ride on the Magic School Bus with Ms. Frizzle. This bus is magic because it can go anywhere within the body. Today’s lesson is on Central Dogma. Ms. Frizzle takes your class directly to the nucleus to start your field trip. Since this trip is about the central dogma, what three major cellular process will be involved? Where will you bus be going within the cell during each of these processes? For each process, describe in your own words and in general what is going on?
Answer:
See the answer below
Explanation:
The trip will involve a bit of stoppage inside the nucleus during which replication and transcription will take place before proceeding to the cytoplasm where synthesized mRNA will become translated into protein.
The central dogma refers to a series of processes during which genetic information in the DNA of a cell is encoded and expressed in living cells. The 3 major steps involved in these processes are:
1. Replication
2. Transcription
3. Translation
Replication involves the synthesis of a double-stranded DNA molecule from a template of another double-stranded DNA molecule within the nucleus. In order words, replication is a process during which a DNA molecule reproduces itself. Each of the strands of the DNA acts as a template for the synthesis of another new strand. Eventually, 2 new double-strand DNA molecules are formed each consisting of one old strand and one new strand.
During transcription, the information contained in deoxyribonucleic acids is encoded and transcribed into another molecule known as the messenger ribonucleic acid. This process happens in the nucleus of the cell.
After transcription and processing of the mRNA produced, the resulting mRNA is then transported to the cytoplasm where, together with the ribosome and transfer RNA, the encoded information becomes translated into protein. Each of the genetic codes in the mRNA is translated to their respective amino acids and the amino acids are linked together by peptide bonds to form a protein.
a. What are the two genotypes of the grandparents? ________ b. What is the genotype of Jane's husband? ________________ c. What are the chances that Peter is the carrier of the PKU allele that resulted in his having an affected son? _________%
Answer:
a. Rr, Rr
b. rr
c. 0% because its the women who transmits the disorder.
Explanation:
PKU allele is an autosomal recessive disorder which is caused by mutations in both alleles of gene for phenylalanine hydroxylase. Alleles are either dominant or recessive. When two alleles are identical means that mother and father cells are homoozygous recessive. They both are combining the same alleles causing it to have a higher chance of genetic disorder.
Where does the electron-acceptor molecule
transfer electrons?
photosystem 1
photosystem II
the thylakoid space
the electron transport system
Answer:
The answer is photosystem 1
Explanation:
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(If helpful)
Answer: A.) photosystem I
Explanation: i hope this helps :)
Stem cell transplants may someday be used to treat Parkinson's disease. Researchers are hopeful that these cells would alleviate the symptoms of Parkinson's disease by
Answer:
Researchers are hopeful that these cells would alleviate the symptoms of Parkinson's disease by secreting the neurotransmitter dopamine.
Explanation:
Dopamine is a neurotransmitter released by the brain that plays a role in pain processing at various levels of the central nervous system. This includes the spinal cord, periaduectal gray matter, the thalamus, the basal ganglia, the insular cortex, and the cingulate cortex. Low dopamine levels are associated with the painful symptoms that frequently occur in Parkinson's disease. Parkinson's is generated from a neurodegenerative disorder that mainly affects dopaminergic neurons, responsible for producing and secreting dopamine within the brain. When these neurons degenerate, dopamine levels decrease and the consequences are tremor, muscle stiffness and difficulty making voluntary movements, among others. In Parkinson's disease, there is a loss of dopaminergic neurons and a potential treatment would be that the lost neurons could somehow be replaced. One possibility is to transplant stem cells that differentiate into dopamine-producing nerve cells.
he effect of autonomic fibers on target cells is _________. The effect of somatic fibers on target cells is __________.
Answer:
The effect of autonomic fibers on target cells is excitatory or inhibitory
The effect of somatic fibers on target cells is always excitatory.
Explanation:
The autonomic fibers is a part of peripheral nervous system that controls the involuntary actions of internal organs and glands like heart and intestines.
It's effect are excitatory or inhibitory because reflexive and involuntary manner. It helps to maintain homeostasis (internal stability and balance) through the coordination of various activities such as hormone secretion, circulation, respiration, digestion and excretion. This system control fight to fight response in the body incase of danger.
This system operate in opposite" actions where one system activates a physiological response and the other inhibits it.
The somatic fibers are part of the peripheral nervous system that help transmit sensory information and motor information. They are made up of nerves that connect to the skin, sensory organs, and all skeletal muscles.
Somatic neurons are excitatory neurons because excite their target postsynaptic neurons or target cells causing it to function..
Air pollution in national park is effecting the environment in which way
Answer:
Nature
Explanation:
Air pollution harms plants and animals and even contaminates water – it stifles tree and crop growth, causing leaves of tree species to blacken and wither.
Bile is formed by
a. sinusoidal endothelium
b. stromal cells
c. lymphocytes
d. (von) kupffer cells
e. hepatic cells (hepaticytes)
Answer:
E. hepatic cells (hepatocytes)
Explanation:
These cells are the ones that secrete bile acids, rest do not match the given description
These cells make up about ~70-80% of liver mass and are primary authority at producing bile for the body
Answer:
Bile is formed from (con) kupffer cells
A particular protein (Vac8) found in yeast has this N-terminal sequence, Met-Gly-Ser-Ser-Cys.... The corresponding DNA sequence in the coding strand is 5' ATG GGC TCA TCG TGC.... If the DNA sequence is mutated to 5' CTG GGC TCA TCG TGC..., what will happen to this VAC8 gene? (in RNA, CUG codes for Leu)
Answer:
The protein will not be synthesized because this point mutation produces the loss of the start codon (substitution of Met by Leu).
Explanation:
The mutations are changes in the DNA sequence that have diverse effects on protein synthesis. A mutation in the start AUG codon may lead to the reduction and even the elimination of protein synthesis. In consequence, this type of point mutation is usually referred to as 'start-loss mutation'.
Why are all food service workers required to understand and apply food safety knowledge?
Select one:
a. To prepare the best tasting food possible.
b. To prevent the spread of illnesses through food.
c. To reduce customer injury such as cuts and burns.
d. To reduce the amount of food thrown away due to spoilage.
Answer:
B.
Explanation:
Keeping and understanding food safety knowlege prevents the consumer from getting sick.
what are the 4 phases of mitosos
Answer:
prophase, metaphase, anaphase, and telophase.
Explanation:
If evolution is based upon there being genetic diversity between generations, how does the lack of genetic differences existing between daughter cells created via mitosis impact the theory of evolution
Answer:
See the answer below
Explanation:
If evolution is based upon genetic diversity, it means that evolution in organisms that only reproduce by mitotic division will depend largely on the frequency of random mutation of genes.
The only way that genetic diversity can occur between daughter cells formed from mitosis is if mutation takes place. Mutation general means a sudden change to the gene sequence of an organism.
Without mutation, evolution in mitotic organisms will be non-existence because there are no new genes or alleles being introduced into the gene pool.