Answer
The differences between dna and rna are:
DNA is a double helix RNA is a single helix
DNA contains deoxyribose as its sugar and RNA contains ribose
DNA has the bases adenine, thymine, cytosine, and guanine but RNA has the bases adenine, uracil, cytosine, and guanine
Explanation:
4. Describe a practical application of chromatography and give an example that is unrelated to photosynthesis.
Answer:
Explanation:
It is sometimes used in medicine to examine body fluids. The chemicals of interest (ones that should not be in the body) will separate out differently than the fluids that should be there.
During his dihybrid experiments on yellow round peas and wrinkled green peas , Mendel noticed four phenotypic categories of the f2 progeny with the ratio 9:3:3:1 . explain and show how he came up with the 9:3:3:1 ratio
Answer: stop cheating mr.lazzo, I'm calling your parents
Since we can't drink ocean water due to its salt content, why is polluting the oceans so much a concem for people? Write your response in the essay box below.
answer:
we can't pollute water because there are creatures and organisims that live in the water so if we pollute it then they will die, besides you can filter the water to get rid of salt then you're able to drink the water and also use it for many other purposes.
What are the main features of tropical climate
Its characteristic is the high temperature and the division of two seasons: rainy in summer and dry in winter. In regions affected by this type of climate, it is not possible to notice the change of seasons.
Fill in the blanks about each of the following sequential steps of the electron transfer chain (ETC) of the inner mitochondrial membrane.
a. The initial electron donor of the ETC is _______________, which hands its two electrons off to FMN, within Complex I.
b. Electrons from both Complex I and Complex II are ultimately donated to the same molecule, ____________.
c. Within Complex III, electrons from ubiquinol are ultimately donated to ______________, which then passes those electrons on to Complex IV.
d. ______________ is the final electron acceptor of the ETC.
e. The downhill movement of electrons through the ETC creates a proton gradient across the inner mitochondrial membrane. The _________________ subunit of the ATP synthase creates a channel that allows for the downhill movement of protons from the intermembrane space to the matrix.
f. The concomitant release of free energy drives the synthesis of ATP by the ____________ subunit of that same protein.
Answer:
a. NADH
b. Ubiquinone
c. Cytochrome c
d. Oxygen
e. F0 subunit
f. F1 subunit
Explanation:
Electrons enter the Electron Transport Chain (ETC) from Nicotinamide Adenine Dinucleotide (NADH), which is an electron donor generated during different catabolic reactions (e.g., glucose oxidation). Ubiquinone or 'Coenzyme Q' is an electron acceptor that accepts electrons from both Complex I and Complex II and donates electrons to Complex III. The oxygen (O) is the final electron acceptor that accepts the electrons after they have passed through the ETC and ATPase. Complex III (also known as Ubiquinol-cytochrome c oxidoreductase) catalyzes the electron transfer from ubiquinol to Cytochrome c, which is coupled to proton translocation across the membrane. The F0 subunit of the ATP synthase forms a channel (embedded in the mitochondrial membrane) through which protons can flow. Moreover, the F1 subunit of the ATP synthase uses the energy released by the proton electrochemical gradient to drive the synthesis of ATP.
Need help with 2. and 3. Thanks!
Answer:
Hair has 2 checks
Explanation:
I believe because if you read it you will see
Answer:
2 = shark, gorilla, lizard
3 = salamander, shark
Explanation:
PLEASE HELP ME ON BOTH QUESTIONS ASAP!!!!!! GIVING AWAY 14 POINTS!!!!
Factors that inhibit photosystem II
Answer:
Inhibition of the activity of photosystem II (PSII) under strong light is referred to as photoinhibition. This phenomenon is due to an imbalance between the rate of photodamage to PSII and the rate of the repair of damaged PSII.
This is the Answer for your question :3
I hope you are having a great day ❤️❤️❤️
1.
The following table describes the resistance of two different wires.
Based on this table, which of the following is most likely true?
Wire A is longer and thinner than wire B
Wire A is shorter and thicker than wire B
Wire A is a poor conductor of electric current
Wire B is a good conductor of electric current
Answer:
b
Explanation:
Answer:
B
Explanation:
The correct answer is option B
BRAINILIEST PLEASEDescribe why certain traits increase in frequency in a population. Provide ONE example to support your response.
Answer:
When a phenotype produced by certain alleles helps organisms survive and reproduce better than their peers, natural selection can increase the frequency of the helpful alleles from one generation to the next – that is, it can cause microevolution.
Explanation:
Because of having dominant traits certain traits increase in frequency in a population because they have.
What are traits?A phenotypic trait is a specific variant of an organism's observable characteristics. Phenotype refers to any measurable, observable and obvious characteristics of an organism. It can be either hereditary or environmental, but usually occurs as a collection of both.
When any allele tends to determine the phenotype, when passed from parent to child, it called as dominant allele. In case of homzygosity as well as heterozygosity, dominant allele can express itself.
Recessive in contrast is, when genotype is homozygous, the trait expressed is referred to as recessive trait. Therefore, certain traits increase in frequency in a population.
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PLEASE HELP!!!!!!
The process that produces 2 genetically different cells is
A) mitosis
B) mitosis and meiosis
C) meiosis II
D) meiosis I
Answer:
b
Explanation:
Meiosis has both similarities to and differences from mitosis, which is a cell division process in which a parent cell produces two identical daughter cells. Meiosis begins following one round of DNA replication in cells in the male or female sex organs.
What percentage of the offspring are going to be golden ?
Answer:
what's the complete question?
Answer:
yeah great question.
Explanation:
Answers to all 6 questions please (83points)
Try and get all 6 right
I need help ASAP. Don’t answer if you don’t know, but if you answer all of them I will give you brainliest.
Answer:
first of all is this an In class experiment or a video you are going to wach to get the answer to what will happen to the stuff. they are all a production involving decomposition bread cust might mold and the glass bottle might break. the plastic bag might crumple the juice carton might get soggy and fall apart. and the aluminum foil might stay the same. thoes are just my predictions but these are option questions and predictions they do not have to be right just a best guess.
Mitosis creates...
A) 4 identical cells
B) 2 identical cells
C) 4 unidentical cells
D) 2 unidentical cells
Answer:
B) 2 identical cells
Explanation:
"Mitosis is a type of cell division which produces two identical diploid daughter cells. "
URGANT ‼️
Which of the following changes takes place during the first trimester of a
woman's pregnancy?
A. The fetus begins to form teeth.
B. The fetus develops toenails, lips, and eyelashes.
C. The mother feels the fetus move for the first time.
D. The fetus begins rhythmic breathing movements.
Answer:
it's either c or d that's for sure because usually the baby does start to kick for the first time towards the beginning but the fetus begins to move at an early time and begins rhythmic breathing around first or second trimester I'm sorry if it's not exact answer you want but I do have it narrowed down for you
The fetus develops toenails, lips, and eyelashes and The fetus begins rhythmic breathing movements changes takes place during the first trimester of a woman's pregnancy. Thus the correct option is B and D.
What is pregnancy?
Pregnancy is the period in which a fetus develops inside a woman's womb or uterus. Pregnancy usually lasts about 40 weeks, or just over 9 months, as measured from the last menstrual period to delivery. Health care providers refer to three segments of pregnancy is called trimesters.
The baby's brain and spinal cord will develop from the neural tube. The heart and other organs also are starting to form. Structures necessary to the formation of the eyes and ears develop. Small buds appear that will soon become arms.
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A teacher shows the class a plant and asks the students to predict the biome the plant is from. Which of the following sets of questions would be the most helpful to the students in determining the correct biome for the plant?
The favorite food of the giant panda is?
bamboo
Answer:
The answer is bamboo.
Explanation:
Pandas eat 12 - 40kg of bamboo everyday
3. (a)
Explain why sweat accumulates on a person's skin in a hot humid
Environment
Answer:
In humid conditions where surrounding air cannot hold further water vapour, sweat evaporates slowly, if at all. As a result the body heats up. it is difficult for the sweat to evaporate and in high humidity conditions we tend to sweat more. This explains why it feels so much hotter in high humidity.
Which of the following is true of artificial selection?
O A. It is identical to natural selection.
O B. It is a type of natural selection.
C. It is not a true evolutionary mechanism.
D. It is directed by humans.
SI
Strawberry poison dart frogs have different skin colors within their population. The frogs can be categorized broadly using the colors green, blue, yellow, and red. A
researcher performs an experiment using colored clay frogs to represent the different types of frogs to investigate which color morph is preyed upon the most by
snakes. The researcher compares the number of snake attacks on each of the four different colored clay frogs.
200-
150-
Number of Attacks
100
50-
0
green
Blue yellow red
Color of Clay Frogs
Which distribution of strawberry poison dart frogs is likely to exist in nature?
There will be more red-colored frogs in the population than green-colored frogs.
There will be more yellow colored frogs in the population than red-colored frogs
There will be more green colored frogs in the population than yellow-colored frogs.
There will be more blue colored frogs in the population than yellow-colored frogs.
Answer:
There will be more yellow-colored frogs in the population than red-colored frogs
Explanation:
Available data:
Strawberry poison dart frogs have different skin colorsThe frogs can be categorized broadly using the colors green, blue, yellow, and red.Frogs eaten by snakesNumber of snake attacks Frog color
145 Approx Green
180 Approx Blue
125 Approx Yellow
145 Approx Red
The phenotype of individuals and the environment where they live, interact and determines the genes´ destiny in space and time. The result of this interaction and the gene destiny is Natural Selection. Natural selection selects beneficial alleles and increases their frequency in the population.
The attack by snakes is acting as a selective pressure on the frogs´ population. It is an ecological pressure that is modeling the frogs´ phenotype.
Animals that suffer more attacks are the blue ones, followed by green and red frogs. Those that suffer the fewest number of attacks are the yellow individuals.
So natural selection will be acting on this population favoring the alleles that code for yellow color. Genes that express yellow color increase more the frogs´ fitness than genes that code for the other colors. So natural selection increases the frequency of genes coding for yellow color and will decrease the frequency of the other alleles. Probably the less favored will be genes that express blue.
bridgett is riding her bicycle up the hill which statements are correct
Answer:
A, B, C, D and F
Explanation:
i did the assignment
What will the result be if a purebred tall pea plant is mixed with a purebred short pea
plant?
А) A short pea plant, due to chance
B) A short pea plant, because short is the dominant allele
C) A tall pea plant, because tall is the dominant allele
VONEN
D) A tall pea plant, due to chance
Answer:
C
Explanation:
Answer:
C) A tall pea plant, because tall is the dominant allele
Question 3
Which of the following refers to a community of living organisms and the way they interact with nonliving parts of their environment?
А
trophic
В
biome
С
habitat
D
ecosystem
Answer:
Which of the following refers to a community of living organisms and the way they interact with nonliving parts of their environment? Ecosystem.
Explanation:
Hope you have a great rest of your day.
The rind (skin) colors and patterns of watermelon fruit have been among the major objectives of breeding. If you cross a dark green watermelon with a grey watermelon, then let the F1 generation freely mate you get dark green, medium green, and grey fruits. Explain the inheritance of rind color in these plants
Answer:
Explanation:
l
So, if life started aquatic how did it evolve for land and why?
Answer:
So when the first animals moved onto land, they had to trade their fins for limbs, and their gills for lungs, the better to adapt to their new terrestrial environment
Explanation:
Answer:
abilites
Explanation:
descriptive essay about my hometown
Answer:
I love my hometown as I love my home and I like to stay in the town streets as I stay in the rooms of my house.”
Everyone loves his hometown or city dearly. It is like loving the home or the place where one passes one’s life. My town is close to a canal that flows out of the river some eight kilometers away. Gardens and parks surround it on all sides. Beautiful flowers and tasty fruits of all the seasons are to be found welcoming you as you approach the town. Grassy grounds border the town where children, men, and women are found playing in the afternoon.
I love my hometown as I love my home and I like to stay in the town streets as I stay in the rooms of my house.”
Everyone loves his hometown or city dearly. It is like loving the home or the place where one passes one’s life. My town is close to a canal that flows out of the river some eight kilometers away. Gardens and parks surround it on all sides. Beautiful flowers and tasty fruits of all the seasons are to be found welcoming you as you approach the town. Grassy grounds border the town where children, men, and women are found playing in the afternoon.
The town has two colleges, one for boys and another for girls. It also has four high schools and six middle schools. The students are mostly from middle-class or rich families, but now some working-class people like laborers have started sending their children to schools. We have quite high standards of education as we have in some famous colleges and schools in the big cities. The reason is the hard work that teachers put in and the interest that most of the students take in studies.
The town has a fine public hospital where most government doctors attend to patients as well as they can the public dislikes the few careless doctors. They are often transferred on the public complaint. Of course, the hospital is often overcrowded and suitable medicines are in short supply. The richer people go to private clinics where they get medical treatment of their choice.
The town municipal committee keeps the town clean, but sometimes garbage heaps collect, and the whole place begins stinking (giving an unpleasant smell). The electricity department takes care that the streets are brightly lit at night. When people have complaints about its working, it begins performing better. The police and other government departments in the town, on the whole, have been performing their duties equally well. The people of the town have now started complaining of rising corruption in government offices. It is time we checked it with most strictly. When I am away from my town, I feel as if I am away from something dearest in life.
describe mechanism inhalation in mammals
All mammals have lungs that are the main organs for breathing. Lung capacity has evolved to support the animal's activities. During inhalation, the lungs expand with air and oxygen diffuses across the lung's surface, entering the bloodstream. During exhalation, the lungs expel air and lung volume decreases.
What should be done with a used needle??
Answer:
It should be disposed of because its dirty and no one wants a disease from it if it goes into you somehow
Explanation:
Among Delta-back stripped fish, there are two genes that segregate independently of one another. Suppose the alleles at the first locus are A (dominant) and a (recessive) and the alleles at the second locus are B (dominant) and b recessive). If an AABB fish mates with an aabb fish, and their offspring are inter-crossed, the proportion of F2 fish that show a recessive phenotype at the first locus and a dominant phenotype at the second is:
Answer:
4/16
Explanation:
It is given that the alleles of the first locus = A dominant and recessive a
The allele of the second locus = B dominant and the recessive b.
Now if fish with AABB mates with the aabb fishes, then to tell the proportion of the F2 fish which shows either the dominant phenotype at the [tex]$\text{first locus}$[/tex] and also a recessive phenotype at the [tex]$\text{second locus}$[/tex].
So for this, the recessive phenotype at the [tex]$\text{first locus}$[/tex] as well as the recessive phenotype at the [tex]$\text{second locus}$[/tex] is in the ratio of 4/16.