Answer:
Red cows have a dominant red allele and white cows have a dominant white allele. When a red cow mates with a white bull, they can have offspring that have the color that is called Roan which is a red and white spotted appearance. This is an example of co-dominance
Explanation:
CORRECT ME IF I AM WRONG
If a roan cow is crossed with a red cow, the percentage of roan cow in the offspring will be 50%.
CO-DOMINANCE:A roan cow phenotype is a product of co-dominance between red (R) and white (W) alleles. This means that a roan cow will have a RW genotype. If a roan cow is crossed with a red cow i.e. RW × RR, the gametes produced by each cow is as follows:RW - R and WRR - R and RUsing a punnet square, the following offsprings of cow will be produced: 2RR, and 2RW. This means that the percentage of roan cows in the offspring will be 50% i.e. ½ × 100 = 50%.Therefore, If a roan cow is crossed with a red cow, the percentage of roan cow in the offspring will be 50%.
Learn more about co-dominance at: https://brainly.com/question/9881046
What is the initial source of energy in all ecosystems?
Answer:
cells are the innermost source of energy in all organisms. please give me brailiest
Materials are able to move across a cell membrane through one of two methods: active transport or passive transport. What is the difference between the two?
A
Active transport requires the cell to form vesicles, while passive transport requires the use of membrane pumps.
B
Active transport requires the cell to expend energy, while passive transport does not.
C
Active transport is the only form of transport that requires the use of protein carriers.
D
Passive transport is the only form of transport that requires the use of protein carriers.
Answer:
(B) Active transport requires the cell to expend energy, while passive transport does not
Answer:
b
Explanation:
what is this? If you know lmk
Answer:
it is a bug
Explanation:
Place them from smallest to biggest please;
1) atom
2)molecule
3)cell
4)organ
5)organ system
6) tissue
7)organism
Answer:
1
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Answer:
Explanation:
Atoms make up molecules; molecules make up cells; cells make up tissues; and two or more kinds of tissues working together make an organ and lots of organs working together creates an organ system
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Answer:
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Living organisms must be able to obtain materials, change the materials into new forms, remove poisons, and move needed material from one place to another. Many of these activities directly require
Answer:
These activities require energy released from the ATP.
Explanation:
PLEASE ANSWER BOTH!!! WILL GIVE BRAIN!!
True or false
Answer:
True, True
Explanation:
I also commented the answer, explaining it :)
How do animals get the carbon they need?
Animals get carbon by eating plants or by eating other animals.
What is occurring in this equation? ATP + H2O --> ADP + Pi + energy
Answer:
ATP hydrolysis
Explanation:
ATP hydrolysis is the catabolic process whereby an Adenosine triphosphate (ATP) molecule is broken down by the addition of water to form ADP, inorganic phosphate (Pi) and a release of energy. ATP is an high energy storing molecule in living cells. The stored energy is released when it undergoes hydrolysis.
ATP + H2O → ADP + Pi + energy
From the above reaction, energy once stored in ATP is now available for use. This reaction is hence, called HYDROLYSIS because it involves break down of ATP with the aid of water molecule.
HELP THIS IS TIMED!!!
Which courses should Don take in high school if he wants to pursue a degree and career in molecular biology? O anatomy and neurobiology O immunology and genetics O history and communications O physics and trigonometry
Answer:
anatomy and neurobiology
Explanation:
Molecular Biology is the field of biology that studies the composition, structure and interactions of cellular molecules – such as nucleic acids and proteins – that carry out the biological processes essential for the cell's functions and maintenance.
Successful molecular biologists have an excellent understanding of subjects such as cell physiology, chemistry, genetics, and physics.
A neuroscientist (or neurobiologist) is a scientist who has specialised knowledge in the field of neuroscience, the branch of biology that deals with the physiology, biochemistry, psychology, anatomy and molecular biology of neurons, neural circuits, and glial cells and especially their behavioral, biological, and psychological aspect in health and disease.
A ___(J)_____ is a group of individuals of the same species that mate and produce offspring. In each generation, new genotypes occur that express themselves as specific individual ____(K)___. Any factor that affects the ____(L)___ of a population can change the frequency of ___(M)___, resulting in evolution over time. Through the processes of variation and ___(N)___, new species can arise. A ___(P)___ is a population of physically similar, interbreeding organisms that do not interbred with other such groups.
Answer:
(J) population; (K) phenotypes; (L) gene pool; (M) alleles; (N) natural selection; (P) species
Explanation:
A population is a group of organisms living in a particular geographical area that is capable of interbreeding, while a species is a group of populations that are capable of interbreeding and producing fertile progeny. In a population, genetic variation can enter from one of these sources: 1-recombination (i.e., the exchange of DNA between homologous chromosomes during meiosis), 2-mutations (i.e., genetic alterations resulting from DNA replication), 3-migration of individuals between populations, or 4-lateral or horizontal gene transfer (i.e., the acquisition of genetic material between individuals without direct vertical inheritance, it is extremely rare in higher organisms). Alleles are gene variants which are may be created, for example, through mutation, while the gene pool refers to the total genetic diversity (i.e., alleles) that exists within a population. Finally, natural selection refers to the evolutionary process of differential reproduction and survival through which populations adapt and change.
The Sun is at the center of our solar system. Based on distance, how would the Sun's size appear to an observer on Jupiter, compared to an observer on Earth?
A) Bigger
B) the same size as seen on Earth
C) Smaller
I'm pretty sure it's C I think sorry if it's wrong
Answer:
C) smaller
Explanation:
the answer is c) smaller
2. Which of the following best describes the genetic material a person receives from his or her father?
- 22 pairs of homologous chromosomes and an X and Y chromosome
- 22 haploid cells and an X or Y chromosome
- 23 diploid cells and an X and Y chromosome
- 22 autosomes and an X or Y chromosome
Answer:
22 autsomes and an X or y chromosome
Explanation:
Humans have 46 chromosomes. 23 from the mother and 23 from the father. The father has x and y chromosome. While the mother has two x chromosomes. 22 chromosomes each are given from both parents And the other chromosome (the 23rd) are the chromosomes for sex genes. Autosomes are all chromosomes that are not sex chromosomes. Therefore 22 autosomes are given from each parent. With reference to this questions 22 autsomes and one x or y chromosome will be given from the father.
Cells:Question 7
Which statement describes a primary function of the cell wall of a plant
cell?
Select one:
The cell wall provides structural support.
O
The cell wall performs photosynthesis.
The cell wall stores DNA.
О
The cell wall manufactures proteins.
Answer:
all plant cell have primary cell wall .it is thin and occurs outside of the cell membrane. it mainly consists of cellulose fibres that that can stretch the cell to grow .
Because there are three different possible reading frames in a messenger RNA (mRNA) molecule, most mRNAs can be translated in a cell into three different proteins. true false
Answer:
False
Explanation:
In the genetic code, each triplet of nucleotides (i.e., each codon) determines one specific amino acid or one-stop codon. The genetic code is not overlapping, which means that the same letter in the genetic code (nucleotide) cannot be used for two different codons. There are 64 possible combinations of triplets of nucleotides, 61 of them determine amino acids, while three triplets determine stop codons (UAG, UAA, and UGA) that indicate the termination of translation. Moreover, the genetic code is also degenerate, which means that one amino acid can be coded by more than one codon.
PLLLZZZZ HELPPPPP
Since, during transcription RNA codes for the coding strand only then why are there introns in mRNA in eukaryotes????????
Answer:
Intron is essential for coding of proteins and hence it is present in the mRNA of Eukaryotes
Explanation:
Intron are important for coding proteins. In eukaryotic cell, the mRNA has introns and these introns are removed by encoding proteins from mRNA with a right sequence. Thus, introns are essential to encode DNA, RNA, protein etc, and they take partly important roles during encoding of mRNA to higher forms of molecules.
You place a cell in a solution that contains 12 more water molecules than the inside of the cell. How will you know when the cell reaches equilibrium?
Answer:
B
Explanation:
the water molecules will stop moving across the
cell membrane because the cell membrane has
the same amount of water as in the solution.
This process is called osmosis
A host cell infected by a virus will activate the adaptive immune response through _______. (Select all that apply) Dendritic cell Macrophages MHC I molecules Cytotoxic T cell MHC II molecules Helper T cell
Answer:
Cytotoxic T cell
Helper T cell
Explanation:
Adaptive immune system is a part of the immune system initiated only when there is an attack by a pathogen or foreign substance. The adaptive immune system is beckoned on when the infection is insurmountable for the body's first line of immunity, which is the innate immune system.
The adaptive immune response is triggered by the white blood cells called LYMPHOCYTES. Lymphocytes consists of T cells and B cells. T cells are either cytotoxic or helper T cells. The cytotoxic T cells kills the cells infected with the virus while the Helper T cells activate every other cell involved in the immune process.
Why is the number of producer higher in food chain?
Answer:
because the plants are more thanare autotrophs, or organisms that produce their own food. ... They are at the bottom of the food chain because they are eaten by other organisms, and they don't need to eat for energy. Producers make their own food through the process of photosynthesis instead of eating organic matte
Plz helppp........<33333333333
Land plants evolved long before any animals appeared on Earth. When they came onto land, they needed ways to keep from losing water, to reach the sun, and to produce oxygen. They started to convert the atmosphere from carbon dioxide to oxygen. Which of these is believed to be the common ancestor of land plants?
A. oak trees, because they are the dominant species in many areas
B. rose bushes, because they produce a sweet-smelling aroma
C. grass, because there is so much of it found on the land
D. green algae, because they use the same photosynthetic pigments as land plants
Answer:
D. green algae, because they use the same photosynthetic pigments as land plants
Explanation:
Carbon dioxide is INCREASING in Earth's atmosphere. What is one possible reason that could explain WHY
carbon dioxide is increasing?
A More people are riding bikes to work instead of driving cars.
B The number of people living on Earth (population) is decreasing.
More businesses are using solar power instead of combustion to produce electricity.
D Companies are cutting down trees to make space for factories and produce paper products.
Answer: Companies are cutting down trees to make space for factories and produce paper products.
Explanation: when people finish using paper products they throw them away and the paper products get burned, and that produces carbon dioxide
is small or large pieces of plastic worse for the environment
If 25% of a population has a recessive allele and 75% have the dominant trait for a 2-allele trait, if in Hardy-Weinberg Equilibrium then what would the percentage of recessive alleles be in that population
Answer:
q = 0.5
The percentage of the recessive allele is 50%
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
Which is NOT a reason nucleic acids are important?
A. They transfer genetic information to offspring.
B. They are the genetic information that instructs our bodies on how to develop.
C. They provide us with a great source of energy.
Which is NOT a reason nucleic acids are important?
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[tex]\sf\purple{C. \:They\: provide \:us\: with\: a\: great\: source \:of\: energy.✅}[/tex]
.....................................................................
MORE:-
Nucleic acids are a type of macromolecules that make up the [tex]\sf\blue{genetic\:material}[/tex]. They are [tex]\sf\red{not}[/tex] used for energy production.The two main types of nucleic acids are [tex]\sf\pink{deoxyribonucleic\:acid}[/tex] (DNA) and [tex]\sf\purple{ribonucleic\:acid}[/tex] (RNA).DNA and RNA store and transmit genetic information. DNA carries the instructions for the development, growth, reproduction, and functioning of all life......................................................................
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Answer:
C. They provide us with a great source of energy.
Explanation:
They provide us with a great source of energy is not a reason nucleic acids are important.
What is metamorphosis?? Hlw guys gøød Evening....
Answer:
a big change in a insect is called a metamorphosis
Example
tadpole will turn into frog= big change
[ METAMORPHOSIS ]
Metamorphosis is a biological process by which an animal physically develops after birth or hatching, involving a conspicuous and relatively abrupt change in the animal's body structure through cell growth and differentiation.
Metamorphosis is divided into two types, namely:
perfect metamorphosisimperfect metamorphosis11) What name is given to any cell that is produced after cell division?
OA.) daughter cell
OB.) parent cell
PLZ HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
True or false: If an injury occurs in the lumbar region of the spinal column, loss of sensation can occur in all 4 limbs.
True
False
Answer: True
Explanation:
 Which statement about the cells of organisms is accurate?
A. plants are unicellular organisms that have specialized functions.
B. All organisms are multicellular and carry out similar functions of life.
C. The single cell of a unicellular organism carries out all functions of life.
D. The single cell of a unicellular organism can have specialized functions.
Answer:
B
Explanation:
Animals, plants, and fungi are multicellular organisms so therefore B
1. What is the major goal of cellular respiration?
A.Reduce NAD+
B.Supply cell with fixed carbon
C.Produce ATP
D.Generate 02
Answer:
The primary “goal” of Cellular Respiration is to harvest energy from glucose and other energy-rich carbon- based molecules and use it to make ATP, which is the universal energy molecule.