Answer:
If a DNA molecule has 30% Adenine the percentage of the other bases is Thymine: 30% Cytosine: 20% Guanine: 20%.
Explanation:
When the percentage that a base has in a DNA molecule is given, the percentage of the other bases can be known using the Chargaff's base pair rule.
A DNA molecule has the information of the genome of a living being, according to a specific sequence of its nitrogenous bases adenine, guanine, cytosine and thymine.
Chargaff was able to establish that in a DNA molecule the ratio of purine : pyrimidine of 1:1, so there must be the same amount of thymine as adenine and a similar amount of guanine for the cytosine, taking into account the complementarity of bases.
Taking into account the law of the base pair, if in a DNA chain there is 30% of Adenine, in the molecule there is:
Adenine 30%. Thymine 30%. Cytosine 20%. Guanine 20%. Total ..... 100%In this case, the Chargaff rule is useful to determine the percentage of nitrogenous bases that exist in a DNA molecule, knowing the percentage of a single base.
small fishes, squid, and sharks are ______ ,but zooplankton are not
Answer:
Carnivores
Explanation:
What do aerobic respiration and anaerobic respiration have in common?
O Both begin with glycolysis.
Both occur in mitochondria.
O Both require oxygen to proceed.
O Both end with the electron transport chain.
Answer:
A. Both begin with glycolysis
Correct on 2020 Engenuity
-They had it first so credit to them.
Answer:
a
Explanation:
Study this unusual food chain. What could ‘P’ represent?
a. Any normal insect that eats grains.
b. An insect that can make its own food.
c. A carnivorous plant like the Venus flytrap.
d. There is a mistake - nothing can match 'P'.
The correct option as to what P could represent in the food chain would be option C.
P could be a carnivorous plant such as Venus flytrap because these plants are able to get their food both by harnessing solar energy to photosynthesize and by feeding on flying insects.
On the other hand, P cannot be any normal insect that eats grains or makes its own food because according to the diagram, P also derives energy from the sun. Only plants and some microbes are able to photosynthesize.
Therefore, only a carnivorous plant is able to both photosynthesize and feed on insects for their foods when necessary and hence, can fill the space of P in the food chain.
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A particle of a compound is called what?
Most autotrophs convert the sun's energy into chemical energy that is stored in macromolecules, which they then use to ____ and ____.
Answer:
provide structural support , speed biochemical reactions
Explanation:
why are casts, molds, and trace fossils so common?
Answer:
Cast fossils occur when mold fossils are filled in with minerals that harden over time, creating a fossilized replica of the original organism. Water seeps through the rock surrounding the mold fossil, leaving behind minerals which fill the mold. Any mold fossil can potentially form a cast mold.
Explanation:
Answer:
Cast fossils occur when mold fossils are filled in with minerals that harden over time, creating a fossilized replica of the original organism. Water seeps through the rock surrounding the mold fossil, leaving behind minerals which fill the mold. ... Any mold fossil can potentially form a cast mold
Explanation:
pls make me brainliest
what cultural changes did bipedalism cause
Answer: Taller creatures were able to reach higher places for food and interact with different creatures. This changed family life when parents had to care for their young for a longer period of time and for working together.
Explanation:
if guanine replaces with cytosine in erd codon of gene 4, what will happen to the organism
In chili peppers, hot (H) flavor is dominant over mild flavor (h). If a chili grower wanted to grow only hot peppers, which of the crosses below would produce the largest number of hot flavored offspring? (Make a punnett square using the answer choices to find the correct answer.)
In punnett square, the crossing result will be HH,Hh,HH,Hh which means all are going to be hot chili peppers since H (dominant) is present in all of them.
What do you mean by punnett square?The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. It is named after Reginald C. Punnett, who devised the approach in 1905.
A Punnett Square is a helpful tool that helps to predict the variations and probabilities that can come from cross breeding.
The diagram is used by biologists to determine the probability of an offspring having a particular genotype.
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A cell moves particles from a region of lesser concentration to a region of greater
concentration by
1)facilitated diffusion
2)passive transport
3)osmosis
4) active transport
Answer:
facilitated diffusion
Explanation:
Best if luck pal
A cell moves particles from a region of lesser concentration to a region of greater concentration by Facilitated Diffusion.
Facilitated Diffusion in the cell body is the passive movement of particles across a plasma membrane from a region of higher concentration to a region of lower concentration
Examples of biological processes that undergo facilitated diffusion are
The movement of glucose and amino acid into the cell from the bloodstream.The transport of carbon dioxide(gas )from the lungsion transport.See here for more:https://brainly.com/question/14271898
Which of the following organelles are matched together with the correct energy conversion that they perform? Mitochondria: Chemorespiration Chloroplast: Cell Division Mitochondria: Chemorespiration, , Chloroplast: Cell Division, Mitochondria: Cellular Respiration Chloroplast: Photosynthesis Mitochondria: Cellular Respiration, , Chloroplast: Photosynthesis, Mitochondria: Chemosynthesis Chloroplast: Photorespiration Mitochondria: Chemosynthesis, , Chloroplast: Photorespiration, Mitochondria: Photosynthesis Chloroplast: Cellular Respiration
In which part of the cell does glycolysis take place?
A.Cell membrane
B.Cytoplasm
C.Nucleus
D.Mitochondrion
Answer:
Cytoplasm.
Explanation:
Glycolysis occurs in the cytoplasm.
In the image below, what atom is shown in white? URGENT!!!!
Answer:
Pick Hydrogen, but read below.
Explanation:
The blacks are Carbon. They have 4 connections. The left Carbon has 3 whites connected to it. It is not totally an exclusive answer, but the whites could be anything in Column 17 (F, Cl, Br, I) or Hydrogen. Likely it is hydrogen.
name the two things a fetus does to prepare for birth
Answer:
They found that changes in telomeres, part of our DNA that responds to aging, become present in the amniotic fluid as the placenta and other pregnancy tissues get older. These cells could be telling the baby that it's time to be born.
Explanation:
Answer:
During the 28th and 32nd weeks of pregnancy, the baby will begin turning itself into a head-down position, and the baby will also move lower in the pelvis.
Explanation:
The formula CaCl, represents the compound
Answer:
It represents the compound calcium chloride
Explanation:
Which example is not an organism?
bacteria
lung
mold
human
Answer:
Lung
Explanation:
In coastal areas, the large amount of salt in the air and water determines which species can exist there. In these areas, the salt functions as a
A
source of energy
B
growth catalyst.
ОООО
С
limiting factor
D
food source
Answer:
D
Explanation:
the salt provides for some animals
In the areas where amount of salt in the air and water determines species that can exist the salt functions as a ; ( D ) Foodsource
Meaning of Food sourceGiven that salt is an essential part of food and the amount of salt in the air and water determines the species located in an area ( coastal area ), the salt in this scenerio will function as a food source responsible for the existence of species.
Hence we can conclude that In the areas where amount of salt in the air and water determines species that can exist the salt functions as a ; ( D ) Foodsource
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What is the function of enzymes in biological systems?
Answer:
Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways. They are essential for respiration, digesting food, muscle and nerve function, among thousands of other roles.
Explanation:
Brainliest please?
Trapped oil can be discovered by geologists and extracted through __________.
Multiple choice question.
cross out
A)
mining
cross out
B)
drilling
cross out
C)
excavating
cross out
D)
climbing
Answer:
I think it is c
Explanation:
What do a banana and a chicken have in common
Answer:
They are both editable
Explanation:
Which of the following could be seen directly In a karyotype of an unborn baby?
Answer: teeth.
Explanation:
Which of the following indicates that all organisms can be traced back to a common ancestry?
A.
The genetic code consists of nucleotides in triplet codes.
B.
There are a few organisms that respond differently to the start and stop signals in the genetic code.
C.
Microorganisms contain codons and anticodons.
D.
Almost all genes in microorganisms, plants, and animals have the same codons.
Answer:
The genetic material's inheritability shows how that the DNA of all creatures, both living and dead, can be traced back to a single point, which is our common ancestral origin of life.
Explanation:
Widow's peak is a dominant trait (W). Tongue-rolling is a dominant trait (T). Two people who are heterozygous for both traits (widow's peak, tong-roller) get married and have children. Complete the Punnett square to show the parents the probabilities for each child, then answer the question that follows.
What is the probability that the parents will have a child without a widow's peak and unable to roll his tongue?
Group of answer choices
3/16
9/16
0/16
1/16
Answer:
The correct answers are -
A. 1) WWTt 2) WWTt 3)WwTt 4)wwTT
B. 1/16
Explanation:
We know that each gene have minimum two alleles or forms of the gene one is dominant and the other is recessive. So, it is given that W is dominant trait that represents widow's peak so the recessive allele would be w, similarly for the tongue-rolling trait dominant is T n recessive would be t.
So the dihybrid cross of heterozygous parents for both is shown in the punnet square given which lack few possibilities that can easily be carried out by the gametes mention there that are
1. WWTt by WT and Wt gamets
2. WWTt by WT and Wt
3)WwTt by Wt and wT
4)wwTT by wT and wT
And the possibility of a child without a widow's peak and unable to roll his tongue would be possible only if the alleles are recessive for the both trait which is one out of 16 in punnet square thus the possibility would be - 1/16
The _______ is responsible for maintaining homeostasis within any cell
Answer: Cell Membrane
Answer:
cell membrane
Explanation:
The structure most responsible for maintaining cell homeostasis is the cell membrane.
Why would you answer your own question lol
What type of articulation moves the least?
O cartilaginous joints
o fibrous joints
o synovial joints
O ball-and-socket joints
The answer is Fibrous joints
Answer:
fibrous joints
Explanation:
There is no cavity, or space, present between the bones and so most fibrous joints do not move at all, or are only capable of minor movements.
How do sediments eroded by water become more smooth and round
Answer: Liquid water is the major agent of erosion on Earth. Rain, rivers, floods, lakes, and the ocean carry away bits of soil and sand and slowly wash away the sediment causing it to become more round and smooth.
I hope this helps!
Answer:
through friction.
Explanation:
The sediments rub together to become smoother. Sediments that are transported in a mass by water or stream are in motion with respect to the motion of the stream water. They bump into each other which makes extruding parts vulnerable to getting knocked off which makes these particles round.
What type of mutation is the following: ATCGAC to TTCGAC
a)point
b)insertion
c) deletion
Answer:
c) deletion is the type of mutation in the following
The questions are in the pic, they are about gravity :)
2. Because the gravitational force from anything that small compared to a planet is so minuscule it's nearly impossible to feel or measure.
3. Because do not have life and other processes necessary to create the gasses and substances necessary to create an atmosphere.
4. If the amount of mass lost was large enough it would likely allow the moon to eventually orbit away
How are mitosis and meiosis different processes?
Your answer:
A. Mitosis makes exact copies of cells, while meiosis makes cells with half as many chromosomes as they started
with.
B. Mitosis destroys cells while meiosis makes new cells.
C. Mitosis is used to make gamete cells like sperm and egg, but meiosis is used to make new body cells like skin cells
HELP!! Which of the following is NOT true of protein structure?
A: Proteins' secondary structure is dictated by peptide bonds.
B: Proteins' tertiary structure is dictated by R group bonds.
C: Proteins have quaternary structure when they are arranged together.
The statement that is not true related to the protein structure is option b. Proteins' tertiary structure is dictated by R group bonds.
What is protein structure?It is classified as the three dimensional shape of the protein.
In the tertiary structure it does contain the single polypeptide chain that we called as the backbone or there more than one protein secondary structures
Also, it should not be dictated by R group bonds.
Therefore, we can conclude that the option b is correct.
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Answer: A)
Explanation: