Answer:
The DNA of an amphibian, such as a frog, is different from the DNA in a human because a frog's DNA contains a different number and sequence of nitrogenous bases (option A).
Explanation:
DNA is the molecule that contains all the genetic information of the different species of living beings, being a molecule that is present in all of them.
Although the DNA of all living beings has the same basic structure —four nitrogenous bases, a deoxyribose and a phosphate group— what makes the differences between species is the length of the DNA molecule and the different sequences of nitrogenous bases present in the molecule. It is for this reason that frog DNA is different from human DNA.
The other options are not correct because:
B. There are no differences in the phosphate groups from one species to another.
C. All DNA molecules contain guanine and adenine.
D. Hydrogen bonds between nitrogenous bases depend on the amount of paired bases, but are not related to differences in DNA between species.
Natural selection causes what to occur?
Answer:
Natural selection causes populations to become adapted, or increasingly well-suited, to their environments over time. Natural selection depends on the environment and requires existing heritable variation in a group.
Hope this helped!! Have a great day!! :))
Explanation:
Answer:
(I'm not sure if this is what you mean) It causes reproduction, heredity, variation in physical characteristics and variation in number of offspring per individual to occur.
Explanation:
If the four conditions (reproduction, heredity, variation in physical characteristics and variation in number of offspring per individual) change, then a natural selection occurs.
Which of these describes how traits are shown on a branching tree diagram?
All the traits developed at the same time.
The traits developed in organisms in random order.
Traits lower on the tree developed before traits higher on the tree.
Traits higher on the tree developed before traits lower on the tree.
Answer:
C
Explanation:
NEED ANSWER ASAP
NaCl is an example of a compound formed by ionic bonds.
true or false
HELP PLEASEEEEEEEEEEE
Answer:
2. Dominant 3. Recessive 4. H---zygous 5. Heterozygous 6. Hybrid 7. Purebred
Explanation:
2
Upper case letters always represent dominant alleles.
3
Lower case letters always represent recessive alleles.
4
"H---" means same, if you see too upper case letters or two lower case letters it's H---zygous.
5
"Hetero" means different, if you see one upper case and one lower case or two different letters, it's Heterozygous.
6
A hybrid is something with pieces of two different things, like hybrid cars that get energy from gas and heat.
7
I can't think of a way to memorize the word "purebred". Sorry.
Cross a pea plant that has green round peas(GGRr) with a pea plant that has yellow wrinkled peas (ggrr).what is punnett square and determine the genotypes.
Answer:
When crossing a pea plant that has green round peas (GGRr) with a plant with yellow wrinkled peas (ggrr) the genotype of the offspring will be GgRr (50%) and Ggrr (50%).
Explanation:
In pea plants for the trait:
Pea color: green is dominant and yellow is recessive. Pea shape: round is dominant and wrinkled is recessive.Parents:
Green round peas GGRr
Yellow wrinkled peas ggrr
For the cross GGRr X ggrr the Punnett Square shows the possible genotypes in the offspring.
Alelles GR GR Gr Gr
gr GgRr GgRr Ggrr Ggrr
gr GgRr GgRr Ggrr Ggrr
gr GgRr GgRr Ggrr Ggrr
gr GgRr GgRr Ggrr Ggrr
The result of this cross shows the probable genotypes and phenotypes in the offspring of pea plants.
Genotypes :
GgRr 50%
Ggrr 50%
Phenotypes:
Plants with green and round peas 50%.
Plants with green and wrinkled peas 50%.
1. In humans, the starting cell in this process has 46
chromosomes.
Explanation:
Meiosis I
At the beginning of meiosis I, a human cell contains 46 chromosomes, or 92 chromatids (the same number as during mitosis). Meiosis I proceeds through the following phases:
■ Prophase I: Prophase I is similar in some ways to prophase in mitosis.
Most energy enters ecosystems in the form of sunlight. t or f
Answer:
True
Explanation:
on Edge
At which stage chiasmata formation occurs?
Answer:
prophase The chiasmata become visible during the diplotene stage of prophase I of meiosis, but the actual "crossing-overs" of genetic material are thought to occur during the previous pachytene stage
Explanation:
can you help me with this?
can you help me with this?
From the diagram, label the following words on the diagram. write the shape and colour for the following terms.
A) Deoxyribose
B) phosphate
C) nitrogenous base
Answer:
answer
Explanation:
A)-blue regtancle
B)-bluish/green circle
C)-purple pentagon
what characteristics do you see in the image?
How does wet soil differ from dry soil in its ability to absorb heat?(1 point)
A. Wet soil absorbs heat more slowly, due to water's low evaporation point.
B. Wet soil absorbs heat more quickly, due to water's low evaporation point.
C. Wet soil absorbs heat more quickly, due to water's high heat capacity.
D. Wet soil absorbs heat more slowly, due to water's high heat capacity.
Answer:
D.) Wet soil absorbs heat more slowly, due to water's high heat capacity.
Explanation:
Just took the quiz
The mixtures of the minerals, organisms, nutrients and compounds are called soil. Due to water's high heat capacity heat is absorbed slowly by the wet soil.
What are the types of soil and heat capacity?The type of soil that is filled with water molecules in its pores and lacks air in it are wet soil, on the other hand, the soil that has no moisture content in it is called dry soil.
When there is a variation in the temperature then the ability of the soil or substance to absorb heat is called heat capacity.
Water present in the pores of the wet soil has more heat capacity and therefore the heat absorbed by the wet soil is slower than the dry soil.
Therefore, option D. wet soil is slower in absorbing heat.
Learn more about heat capacity here:
https://brainly.com/question/12797889
What is something from our unit on heredity that you think you will remember one year from now?
PLEASE HELP, WILL MARK BRAINLEST TO WHO ANSWERS FIRST WITH THE CORRET ANSWER
The picture below shows a satellite image of the oceans on Earth. Picture shows a color-coded map showing the height of the world's ocean surfaces at a particular time. Purple areas correspond to approximately 10 centimeters below normal. Light blue areas correspond to approximately 2 centimeters below normal. Green areas correspond to approximately 3 centimeters above normal. Red areas correspond to approximately 10 centimeters above normal. In this map, area A is colored red and area B is colored purple. Which of these statements is correct about the ocean at Location A and Location B? The waves at Location A have low frequency. The waves at Location B have low frequency. The waves at Location B are abnormally high. The waves at Location A are abnormally high.
Answer:
I'm gonna go with the fourth one
The waves at Location A are 10 centimeters above normal, which is considered abnormally high.
The image shows a color-coded map of the ocean, with red areas indicating that the ocean is 10 centimeters above normal, purple areas indicating that the ocean is 10 centimeters below normal, and so on. Location A is colored red, which means that the ocean at that location is 10 centimeters above normal. This is considered abnormally high, as the normal range for ocean height is 2-3 centimeters above or below normal.
Location B is colored purple, which means that the ocean at that location is 10 centimeters below normal. This is not considered abnormally high, as it is within the normal range for ocean height.
Therefore, the only statement that is correct about the ocean at Location A and Location B is that the waves at Location A are abnormally high.
To learn more about ocean surfaces, here
https://brainly.com/question/14075479
#SPJ2
An antibiotic interferes with a ribosome's ability to function properly. What effect would taking an antibiotic have on your cells?
A)
Transcription would be affected
B)
DNA replication would be affected
Protein synthesis would be affected
D)
Waste would compile within the cells
Answer:
c
Explanation:
took the quiz on usatestprep
Why do scientists find different fossils in different rock layers?
Different organisms live at different depths underground?
Where do your inherited genes come from?
alleles
parents
gametes
offspring
what organ is respond for the absorption of nutrients from food in the digestive tract?
Answer:
the small intestine absorbs useful material from food and lets it out into the blood stream
Explanation:
Which statement best describes why energy is necessary for organisms to grow and survive?
O Work requires energy.
O Nonliving things require energy.
O Energy is the ability to move or change.
O Energy requires fuel.
- Why was the shift to farming a big deal?
Answer:
Bowles and Choi suggest that farming arose among people who had already settled in an area rich with hunting and gathering resources, where they began to establish private property rights. When wild plants or animals became less plentiful, they argue, people chose to begin farming instead of moving on.
Explanation:
Describe the relationship between ATP and ADP?
Answer:
If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate. The energy holding that phosphate molecule is now released and available to do work for the cell. ... When it's run down, it's ADP.
Answer:
Think of it as the “energy currency” of the cell. If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate. ... When it's fully charged, it's ATP. When it's run down, it's ADP.
Explanation:
what is energy? HEJSIDNCIF
Answer:
energy, in physics, the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms. There are, moreover, heat and work—i.e., energy in the process of transfer from one body to another.
What would you expect to happen if your blood sugar was 120mg/100mg?
Answer:
The 120 miligram per 100 milliliter of the sugar suggests that the blood is hyperglycemic.
Explanation:
the hyperglycemia is the condition, in which the blood sugar level increases than the normal blood sugar levels. The main cause of the insulin is decreased function of the insulin hormone. The condition, in which the insulin is not working properly and is unable to metabolise the sugar (glucose) present in the blood is known as Diabetes.
So, the given case can be a result of diabetes.
What are the base pairs that are found in DNA?
Which feature suggests that a substance is basic?
The pH is less than 7.
The pH is 7
The pH is 0.
The pH is greater than 7.
Answer:
The ph is greater than 7.this is bascic
suggest how the activity of the decomposers can affect the productivity of the food chain
Answer:
Decomposers are fungi (bacteria) that break down plants. This would affect the food chain because there will be smaller food molecules - meaning, not enough food.
PLEASE I WILL MARK BRAINLIEST
discuss the stages of the cell cycle mechanism that regulate it and how this cycle is related to the growth and maintenance of organisms
Answer:
The cell cycle is a four-stage process in which the cell increases in size (gap 1, or G1, stage), copies its DNA (synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage). The stages G1, S, and G2 make up interphase, which accounts for the span between cell divisions.
Cyclins regulate the cell cycle only when they are tightly bound to Cdks. To be fully active, the Cdk/cyclin complex must also be phosphorylated in specific locations. Like all kinases, Cdks are enzymes (kinases) that phosphorylate other proteins. Phosphorylation activates the protein by changing its shape.
Please don't forget to mark me brainliest!!!!!
Which do all cells need in order to function?
oxygen
water
carbon dioxide
offspring
Answer:
oxygen
Explanation:
Answer:
A
Explanation:
oxygen
James is working with the lac operon of Escherichia coli (E. Coli). He places the bacteria on a plate of growth media. The lac Operon of E. Coli is shown. Based on the current understanding of this operon, which hypothesis would be useful for James to test?
Answer:
A.
Explanation:
Lac Operon is defined as an operon that is used by E.coli for transporting and metabolizing lactose.
Allolactose is a disaccharide like lactose, that binds to lac repressor and restrict its binding with DNA. It triggers expression of a operon or gene.
So, adding allolactose to the bacterial growth media, block the activity of lac repressor and trigger the activity of bacteria to metabolize the sugar lactose.
Hence, the correct answer is "A."
Based on the current understanding of this operon hypothesis would be useful for James to test addition of all lactose to the bacterial growth media should increase the speed at which the bacteria metabolize the sugar lactose. Thus, option A is correct.
What is the mode of reproduction of bacteria?The bacteria reproduces through the process of asexual reproduction and the amoeba reproduces through the process of binary fission. Reproduction is defined as the process carried out by the living organisms and during the process of reproduction the living organisms produces their own young ones and feed them. Reproduction is the supreme quality of living things.
There are two types of reproduction and these are sexual and asexual reproduction. The process of reproduction in which two parents are involved is said to be sexual mode of reproduction and the process of reproduction in which only single parent is involved in known as asexual mode of reproduction. The example of asexual reproduction are budding, fragmentation, spore formation, and binary fission.
Therefore, Based on the current understanding of this operon hypothesis would be useful for James to test addition of all lactose to the bacterial growth media should increase the speed at which the bacteria metabolize the sugar lactose. Thus, option A is correct.
Learn more about reproduction here:
https://brainly.com/question/14329745
#SPJ5
A person who is heterozygous for hair type will have a phenotype of wavy hair. If one parent has wavy hair and the other parent has curly hair, what percentage of their children will have wavy hair? A 25% ® 50% 75% 100% A
Answer:
C) 50%
Explanation:
If wavy hair is heterozygous then wavy is dominent and curly is recessive. So the alles for wavy would be Ww and for curly it would be ww. Put that on a punnet square and it is 50-50
Alexis knows that different forms of water can affect erosion differently. She wants to build a model to compare different forms of water.
How could she build a model to compare how different forms of water cause erosion on a hill?
1. Obtain two identical containers and dry sand.
2. Shape equal amounts of sand into a
(A) slope on the side of each container
(B) flat layer in each container
3. Spray water on the sand in one container. The sprayed water represents
(A) a flowing river
(B) ocean waves
(C) rainfall
4. In the other container,
(A) do not add water. this represents the lack of water erosion
(B) place ice cubes to melt on the sand. this represents snow or glaciers
Analyze differences between the two containers.
Answer:
1. Obtain two identical containers and dry sand.
2. Shape equal amounts of sand into a "slope on the side of" each container.
3. Spray water on the sand in one container. The sprayed water represents "rainfall" .
4. In the other container, "place ice cubes to melt on the sand. This represents snow or glaciers." .
5. Observe and record the changes in the sand.
6. Analyze differences between the two containers.
Explanation:
Mine hasn't been graded yet but I'm pretty sure this is the right answer. I'll come back once it's graded and say.
