Genes of one species can be modified, or genes can be transplanted from one species to another. Genetic engineering is made possible by recombinant DNA technology. Organisms that have altered genomes are known as transgenic. Most transgenic organisms are generated in the laboratory for research purposes.
A scientist crossed a pea plant with a green pod and a pea plant with a yellow pod. The scientist collected 100 seeds from the cross. The table shows the trait for pod color observed when the plants from the cross were grown. Which statement correctly explains why all the offspring have the trait for a Yellow pod? A) Genes were inherited only from the plant with a Yellow pod, so only the gene for a Yellow pod was expressed.
B) Genes were inherited only from the plant with a Green pod, but only the gene for a Yellow pod was expressed.
C) Genes for both a Green pod and a Yellow pod were inherited, but only the gene for a Yellow pod was expressed.
D) Genes for both a Green pod and a Yellow pod were inherited, so the genes for both types of pods were expressed.
Answer: C) Genes for both a Green pod and a Yellow pod were inherited, but only the gene for a Yellow pod was expressed.
Explanation: In a diploid organism as the pea plant, a single gene has two alleles or versions, one on each chromosome. Each of these alleles can either be dominant or recessive.
Dominant alleles, such as that producing a yellow pod, will mask the contribution to the phenotype of the second allele, which is recessive. Here, the yellow pod allele will mask the contribution of the green pod allele. Thus, the offspring will have the phenotype (pod color) yellow.
However, both alleles for pod color will be present in the offspring as each parent will provide one chromosome during sexual reproduction.
Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun. What does the force of gravity depend on?
The mass of an object and the distance of the object.
which characteristic can be inherited? A. long toes. B. short temper. C. sense of humor. D. acting ability.
A. long toes
because temper, humor and acting ability cannot be inherited.
The answer is A. The other three are developed not inherited.
Hope I helped.
Why is ATP necessary in cellular functions
Because it transports energy for all cellular metabolic activities.
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Given the sequence of DNA nucleotide bases TAGTAGTAG, give the complementary strand of mRNA produced during transcription.
A) AAGGUAGUA
B) AAUCGGAAC
C) AUCAUCAUC
D) GAGGAGGAG
T=A
A=U
G=C
so the answer is (C)
Answer:
C) AUCAUCAUC
Explanation:
The genetic information which is stored in DNA is transcribed into a complementary strand of mRNA during protein synthesis. This is called transcription. In this process, the DNA nucleotide bases transcribed the complementary bases of mRNA. In the given question, the sequence of DNA nucleotide bases is TAGTAGTAG which will be transcribed on mRNA complementary bases as AUCAUCAUC as A pairs with U and G pairs with C in mRNA.
What kingdom does this organism most likely belong is?
This organism most likely belongs in the Animalia kingdom
Answer:The correct answer is fungi
Explanation:
Trust me I put my life on the first answer above and it was wrong. The correct answer is fungi
What is the main type of weathering in deserts?
physical weathering
chemical weathering
weathering by organic acids
Answer:
The major type of weathering that takes place in a desert in Physical Weathering.
Explanation:
Physical weathering also known as mechanical weathering takes place in deserts. This weathering takes place due to physical or mechanical forces. Frost chattering, temperature fluctuation also causes physical weathering.
In the desert, there is a fluctuation in temperature. In deserts, the temperature during the day will be very high and at night the temperature will be very low. As a result, the rocks expand during daytime due to heating and at night the rocks undergo contraction due to the reduction in temperature. Hence the rocks are weakened followed by the disintegration or breaking of rock.
Answer:
physical weathering
Explanation:
Example of sex linked traits
male tesosterone can affect facial hair, voice deepness, testicle size, muscle mass, agressiveness, etc
Sex-linked traits are determined by genes located on sex chromosomes. In humans, examples of sex-linked traits include certain conditions such as color blindness, hemophilia, and muscular dystrophy. These traits are more common in males because they receive one X chromosome from their mother, which if contains the recessive X-linked trait, it's expressed in males.
Explanation:Sex-linked traits are characteristics determined by genes located on the sex chromosomes. These traits tend to express differently in males and females due to the difference in the sex chromosome composition, XY in males and XX in females.
Examples of sex-linked traits can be seen in human genetics, where the alleles for certain conditions such as color blindness, hemophilia, and muscular dystrophy are X-linked. When a female parent who is homozygous for a recessive X-linked trait, she will pass the trait on to 100 percent of her male offspring, as they inherit their father's Y chromosome.
In addition, females who are heterozygous for these diseases are referred to as carriers, may not show any phenotypic effects, but will pass the disease to half of their sons and carrier status to half of their daughters. Thus, recessive X-linked traits tend to appear more frequently in males than females.
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Give an example of allopatric speciation.
Allopatric speciation is said to occur when two groups of organisms are separated by a physical or geographical barrier. Examples of such barriers are ocean, mountain range, rivers, etc. A good example of allopatric speciation is Galapagos finch. Different species of this bird can be found in different islands at Galapos, which is located at Pacific Ocean off South America. The ocean is barrier that isolate the species from one another.
QUESTION 7
is an organism that only eats other animals.
omnivore
producer
carnivore
herbivore
The answer is carnivores.
The answer is carnivore.
Explanation:
A omnivore eats both plants and animals. A producer, well produces. A herbivore only eats plants. Please mark BRAINLIEST if this helped!:)
If the concentration of a sugar solution is lower outside the cell than inside the cell, which will happen by osmosis?
The hypertonic solution has a lower water concentration than the hypotonic solution, so a concentration gradient of water now exists across the membrane. ... On the other extreme, a red blood cell that is hypotonic (lower concentration outside the cell) will result in more water flowing into the cell than out.
Answer:
Water molecules will move out of the cell
Explanation:
We are given that the concentration of a sugar solution is lower outside the cell than inside the cell. This means that a concentration gradient of water now exists across the membrane.
In Osmosis, we know that water molecules move from a less concentrated solution into a more concentrated one.
So in this case, water molecules will move out of the cell.
Essential amino acids cannot be produced by the body, so they must come from our diet. We can get them from eating foods that contain which biomolecule?
A.
protein
B.
complex carbohydrate
C.
fats
D.
disaccharides
Answer:
We can get essential amino acid from eating foods that contain the biomolecule; protein.
Proteins are macro nutrients that contains amino acids. Amino acids are composed of organic compounds such as carbon, hydrogen, nitrogen, oxygen or sulfur which are the building blocks of proteins. The body requires various amino acids for its growth and proper functioning. The essential amino acids such as histidine, isoleucine, lysine, phenylalanine, tryptophan and valine cannot be made by the body but can be obtained through diets. The best sources of essential amino acids are animal proteins such as eggs, meat, and poultry.
Explanation:
Which of the following is composed of a collection of planets, their moons, and other objects orbiting a central star? Earth Galaxy Solar system Sun
the answer to this question is solar system, earth is a singular planet, galaxy contains stars but does dot orbit around a central star, and the sun is a star
Answer: (C) Solar System
Where would muscle A in the image set most likely be found?
Lining of a tendon
Lining of the thigh bone
Lining of a heart ventricle
Lining of the intestines
Answer:
Lining of the heart ventricle.
Explanation:
Human heart is divided into four chambers: two atrium and two ventricles. The ventricle is located at the bottom of the heart.
The given diagram correspond to the lining of the heart ventricle. The pulmonary circulation of the heart to the lungs occur through the right ventricle. The wall of the ventricles are thicker than atria.
Thus, the correct answer is option (3).
Muscle A is found in the lining of a heart ventricle.
What are the characteristics of heart muscles?The human heart contains cardiac muscle, often known as the myocardium. Cardiovascular muscle is controlled by an involuntary force.There are three layers that make up the heart: the pericardium, myocardium, and endocardium. Heart muscle is not found in the endocardium. The inner lining of the heart chambers and valves is made up of simple squamous epithelial cells. The epicardium, pericardial space, parietal pericardium, and fibrous pericardium are all components of the pericardium, a fibrous sac that surrounds the heart.The contractility of the heart and consequent pumping motion is caused by the cardiac muscle. The heart muscle must contract with sufficient force and blood flow to meet the body's metabolic needs. The formula for this idea, known as cardiac output, is heart rate x stroke volume.It is based on the heart muscle's ability to contract and how frequently that ability is used. The metabolic demand changes along with the heart's ability to contract.
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in the process of___, a protein channel helps the diffusion of glucose across the membrane
Facilitated Diffusion
Facilitated diffusion is the type of diffusion in which the molecules are transported across the channels with the help of transport molecules. Facilitated diffusion is the answer.
What are types of facilitated diffusion ?The types of facilitated diffusion are carrier protein transport and the ion channel transport proteins.
In the process of the facilitated diffusion various molecules are diffused across plasma membrane with help from the membrane proteins such as the channels with carriers. A concentration's gradient lives for these molecules such that they all have potential in order to diffuse in (or out of) cell by just moving down it.
Facilitated diffusion thus allows polar with the charged molecules such as the carbohydrates, amino acids , nucleoside and the ions for crossing the plasma membrane. Two main classes of the proteins that helps facilitated diffusion are generally described as : carrier proteins and the channel proteins.
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Which of the following is a process by which long-term carbon is released into the atmosphere? (2 points)
Combustion
Diffusion
Photosynthesis
Respiration
Either Combustion or Respiration
Answer:
Combustion
Explanation:
If a chemical was placed in the water that caused all of the mosquito larvae to die, what would be one possible change in the food chain?
A). The number of Algae would decrease.
B). The number of Pike would increase.
C). The fisherman would catch less pike.
D). The number of dragonfly larvae would increase.
What uses bacteria to copy dna
To copy the DNA, recombinant DNA method use bacteria such as E. Coli whose plasmids has been combined with various gene to produce the substance that is wanted.
a dna tester and the thing to test your pee
HELP ME I PICKED AN ANSWER ON ACCIDENT SOWWIE
Sorry I don’t know what it is. Hope you aren’t mad at me.
What cell lacks a nucleus
Answer:
bacteria cell is the answer hope it will help
In simple dominance, what is the result when a dominant allele pairs up with a recessive allele?
Offspring display both forms of the trait.
Offspring display an intermediate form of the trait.
The dominant form of the trait shows.
The recessive form of the trait shows.
In most cases, the dominant form of the trait shows.
Answer:
Option C, The dominant form of the trait shows
Explanation:
In simple dominance the trait associated with the dominant allele is expressed while the trait associated with the recessive allele is oppressed. For example –
Let’s assume a flower in which the dominant allele trait is red color and the recessive allele trait is white color. When an offspring of this flower is produced containing one dominant allele and one recessive allele, the color of it would be red only because only the dominant allele expresses its trait.
Hence the correct answer is option C
how does the endocrine system affect the excetory system?
Answer and Explanation: The endocrine system affects the excretory system by affecting the rate at which excretory cells function. Endocrine cells secrete hormones which regulate the activity of excretory cells through cell signalling.
It sends messages using hormones
(apex)
Please Answer ASAP!!
Read the scientific question below.
"Does sunlight make plants live?"
What is a likely hypothesis for the question?
A.Yes, sunlight makes plants live.
B.No, sunlight does not make plants grow.
C.If we place a plant in the shade, then it will die.
D.If we place two plants in sunlight, then they will grow differently.
All living things need water and food. Light is nourishment for plants. They use it in a vital process known as photosynthesis, where chloroplasts capture the energy of light, sparking multiple metabolic reactions — one of which creates plant sugars (food).
So your answer would be A. Yes, sunlight helps plants to live
which of these is an innate adaption
A. hunting in packs
B. mating
C. fighting for protection
D. All behaviors are innate
Answer:D
Explanation: all. Behaviors are innate
Answer: Mating is the correct answer.
Explanation: Innate behavior is also called instinctive behavior. Instinct is the ability of an animal to perform a particular behavior in response to a given stimulus the first time the animal is exposed to the stimulus. In other words, an instinctive behavior does not have to be learned or practiced. Answer is confirmed correct on test. I hope this helps you! Thanks!
what is the process of people moving to city areas?
The Process of Urbanisation is where people move from rural areas to urban areas usually because of economic factors.
how many species of tiger are there in world
There are about: nine subspecies
Tigers have the species name Panthera tigris. There are nine subspecies of tigers, three of which are extinct. A meeting set to begin in Russia on Sunday (Nov. 21) will examine some of the issues facing tigers in the wild and efforts to better conserve the six surviving tiger subspecies.
ANSWER:
there are basically nine species of tigers: (but some of them went extinct)
- Siberian tiger (aka Amur tiger)
- South china tiger
- Sumatran tiger
- Bengal tiger (aka Indian tiger)
- Bali tiger (extinct)
- Malayan tiger
- Javan tiger (extinct)
- Indo Chinese tiger (aka corbetts tiger)
- Caspian tiger (extinct)
~batmans wife dun dun dun...aka ~serenitybella
What do all organisms need? Check all that apply.
multiple cells
air
blood
water
food
a place to live
Answer: air, water, food , a place to live
Explanation:
The living beings are composed of multiple cells, blood and water. They require certain necessities to survive and reproduce. The air is necessary for respiration. Water is necessary for fulfilling the thirst and maintaining the balance of fluid in the body. Food is necessary as it provides energy to do various biological functions. A place to live is necessary as it is the place where the living being rests, eat food and does other important activities.
Answer:
Just for people who still need the answer, it's b,d,e, and f
Explanation:
b. air
d.water
e. food
f. a place to live
8) What are the differences between asexual reproduction and sexual reproduction?
A) Offspring are produced only by sexual reproduction.
B) An exchange of genetic material only occurs with asexual reproduction. C) Sexual reproduction involves one parent organism, while asexual involves two parent organisms.
D) Asexual reproduction produces offspring identical to the parents, while sexual reproduction produces offspring different from the parents.
Answer:Option D
Explanation:
The continuity of organism on Earth is maintained by the process of reproduction.There are two modes of reproduction. One is sexual reproduction and other is a sexual reproduction.
The asexual reproduction is the process by which identical progeny is produced by single parent. There is no need for two parent.
In case of sexual reproduction the offspring produced is not the exact copy of the parents they show variation. This variation in the offspring provides stability to the organism.
Which of the following relationships correctly defines the situation: Lichen – cyanobacteria produces food for the fungus; fungus provides water and minerals for the cyanobacteria.
A. Commensalism
B. Predation
C. Competition
D. Parasitism
E. Mutualism
The answer is; B
Mutations change the order of nucleotide and therefore affects codons that code for proteins. A different protein is thus produced from the wild type hence creating variations. Genetic shuffling in sexual reproduction, also called gene recombination occurs during meiosis and also when different organisms exchange genetic material such as in bacteria.
carbon has six proteins, six neutrons, and six electrons. Oxygen has eight protons, eight neutrons and eight electrons.
Carbon which has six protons,electrons but may not have six neutrons because to determine the number of neutrons you need to know the atomic number(i.e number of protons/electrons) and the mass number.
Neutron number=Mass number-Atomic number
The same applies to oxygen.
Carbon dioxide and oxygen have different atomic numbers.
What is the atomic number?The number of protons in an atom's nucleus, which is a chemical element's defining feature and determines its position in the periodic table is called as the atomic number.
Each kind of atom has a different number of the three particles. Protons and neutrons are in the center, or nucleus, of the atom. Carbon has an atomic number of 6. That means a carbon atom has 6 protons, 6 neutrons, and 6 electrons. Oxygen has eight protons, eight neutrons, and eight electrons. Oxygen is different from carbon because it has more particles.
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