(Urgent) DNA is the primary source of heritable information in cells. Explain how the
chemical structure of DNA makes this possible.

Answer:

23

Explanation:

Final answer:

Carbon is the element that is part of all organic compounds due to its ability to form four covalent bonds, making it essential for the structure of biomolecules such as carbohydrates, lipids, proteins, and nucleic acids.

Explanation:

The element described as being part of all organic compounds is carbon. This is because organic compounds are primarily composed of carbon atoms (C) covalently bonded to hydrogen atoms (H), and often include other elements such as oxygen, nitrogen, sulfur, and phosphorus. Carbon's ability to form four single covalent bonds makes it incredibly versatile and the backbone of organic chemistry. The simplest organic compound is methane, where four hydrogen atoms are bonded to a single carbon atom. Organic molecules are vital to life and include biomolecules such as carbohydrates, lipids, proteins, and nucleic acids.

Answer:

The order of events during egg formation:

Primary oocyte - meiosis l - secondary oocyte - meiosis II - ovum

Explanation:

The process of egg formation is called oogenesis. During oogenesis the primary oocyte is formed when oogonia arrest at prophase-I of meiosis I.  Further division of primary oocyte is arrested.

At puberty the primary oocyte, a diploid cell divides to form one haploid secondary oocyte and one polar body. Thus, at the end of meiosis I one secondary oocyte is formed, after meiosis II secondary oocyte forms ovum.  

Explanation:

Membranes function in a variety of ways. They maintain the osmotic balance (solute concentrations) within cells, keep foreign substances and other cells out, and expel waste...

This is further broken down as:

Active transport is a mediated process that requires an energy input and the use of specialized membrane proteins to move against the concentration gradient. These proteins require energy in the form of adenosine triphosphate or ATP in order to facilitate necessary conformational changes to the large protein molecules to alter the spatial location of the molecule. For instance, with Na+, K+ pumps in cell membranes.

However, via passive transport or diffusion, small molecules can move from regions of high concentration to regions of low concentration until an equilibrium is reached. This occurs along the concentration gradient, and usually involves small non polar molecules in cells such as oxygen and carbon dioxide.

Facilitated diffusion is used for the transport of large molecules unable to cross the plasma membrane at will. However, passive diffusion, describes the movement of substances (small molecules and ions) across the membrane, along their concentration gradient.

During endocytosis large molecules cells and cell fragments moved across the plasma membrane through a process of invagination; piece of the external cell membrane falls into itself and forms a small pocket that surrounds the target molecule, this breaks off from the membrane to form an intracellular vesicle.

In exocytosis, large particles (proteins, neurotransmitters, waste material etc.) are surrounded by a phospholipid membrane in a vesicle. However, this membrane is formed in the cytoplasm, and attaches to the plasma membrane’s interior in a process opposite to endocytosis; material is removed from the cell and exported into the cell’s exterior called the extracellular space.

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Answer:

A:grana

B:water

C: oxygen

D: ATP

E:NADPH

F: phosphate

G: glucose

2: light stage

3:Dark stage

4:stroma(dark) and grana(light)

Answer:

An example of adaptive radiation is the development of mammals after all the dinosaurs became extinct.

Answer:

1 stomach- Digestive

2. brain-Nervous

3. heart-Cardiovascular

4. kidneys- excretory

5. bone marrow- lymph

6.Pituitary gland- Endocrine

7. xylem-vascular tissue

8. bones-skeletal

9. Fallopian tubes-Reproductive

Explanation:

Matching each organ with the correct organ system :

Organ                                      organ system

1. Stomach                               Digestive

2. Brain                                    Nervous

3. Heart                                   Cardiovascular

4. kidneys                               Excretory

5. bone marrow                      Lymph

6.Pituitary gland                     Endocrine

7. xylem                                  Vascular tissue

8. bones                                  Skeletal

9. Fallopian tubes                  Reproductive

The cells make up the tissues and the tissues make up the organs while the organs make up the system. There are about ten(10) different body systems in the human body which perform various functions. example :

Hence we can conclude that the oragns and their systems are as listed above.

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Explanation:

Complete question...

a) the same codons are assigned to the same amino acids in most living things.

b) the same codons are assigned to the same DNA sequences in most living things.

c) None of these are correct.

d) the same amino acids are assigned to the same DNA sequences in most living things.

The genetic code is ubiquitous- it is found everywhere in most living organisms. Thus a) the same codons are assigned to the same amino acids in most living things.

Sequences of DNA make up genes which can have different forms called alleles. DNA is transcribed into mRNA and later translated into amino acids which are linked together by rRNA to form proteins.

Further Explanation:

The nucleic acids are comprised of smaller units called nucleotides and function as storage for the body’s genetic information. These monomers include ribonucleic acid (RNA) or deoxyribonucleic acid (DNA). They differ from other macromolecules since they don’t provide the body with energy. They exist solely to encode and protein synthesis.

Basic makeup: C, H, O, P... life on Earth is Carbon based nucleotides contain 5-carbon sugars, and  nitrogen; the bases may contain single to double bond rings

All the genetic information within the eukaryotic cell is stored within the nucleus as helical DNA. This DNA is tightly wound around histones as chromosomes. Codons are three nucleotide bases, with each codon encoding an amino acid or signalling the beginning or end of protein synthesis.

RNA codons determine certain amino acids so the order in which the bases occur within in the codon sequence designates which amino acid is to be made bus with the four RNA nucleotides (Adenine, Cysteine and Uracil) Up to 64 codons (with 3 as stop codons) determine amino acid synthesis. The stop codons ( UAG UGA UAA) terminate amino acid/ protein synthesis while the start codon AUG begins protein synthesis.

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Answer:

They are abundant and affordable

They include fossil fuels such as oil, natural gas, coal, and uranium used for nuclear energy. Despite this, they have a couple of advantages: The main advantages of non-renewable energies is that they are abundant and affordable. For example, oil and diesel are still good choices for powering vehicles.

Latitude plays a more significant role than longitude in determining the characteristics of biomes.

The **latitude** and **longitude** are both important in determining the characteristics of biomes, but **latitude** plays a more significant role. Latitude affects the climate, temperature, and amount of sunlight that a particular area receives, which in turn determines the types of plants and animals that can survive in a biome. For example, forests are found in regions with moderate temperatures and abundant rainfall, which tend to be closer to the equator. On the other hand, deserts are typically found in areas with high temperatures and low rainfall, which are often closer to the tropics.

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The combustion of biomass can replace fossil fuels in conventional power plants

In conventional power plants a source of heat is used heat liquid water to high-pressure steam and the steam is used to turn turbines with a dynamo effect that produces electricity. This source  of energy can be anything that produces energy when decomposed.

Explanation:

Usually, this source of energy is fossil fuels because it is cheaper and has high calorific value. Biomass - carbon based organic matter such as dead tree logs-  when burned, can produce heat energy required to turn water to steam, too. Biomass is a renewable source of energy in comparison to fossil fuels.

Hydroelectric energy emanates from the potential and kinetic energy of water, usually naturally flowing water,  to turn turbines that produce electricity.

The sun is a renewable resources, unlike fossil fuels, because it is impossible to exhaust the sun's potential in all of the humanity’s existence on earth.

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Answer:

The combustion of biomass can replace fossil fuels in conventional power plants.

Explanation:

Hydroelectric energy emanates from the potential and kinetic energy of water, usually naturally flowing water,  to turn turbines that produce electricity.

The sun is a renewable resources, unlike fossil fuels, because it is impossible to exhaust the sun's potential in all of the humanity’s existence on earth.

Answer:

No it does not represent compound

Compounds are made of 2 or more Different types of Elements

Elements should be different

Here,As Atoms are of same size and color

that indicates Same atoms

So, Atoms should be of different color or size to form a compound

Answer:

The model does not represent a compound because it shows two atoms of the same element combined. To be a compound, the model would need to contain atoms of different elements, represented by different-colored balls.

Explanation:

Its the answer you gave. Glad I could help!

Answer:

In biology, a molecular clock can be described as a method to determine the time for the divergence of species which occurred by the process of evolution. The mutation rates of different molecules are used in this method. The mutation rates for DNA sequences and amino acid sequences are usually considered. The molecular clock can be used to compare and estimate the splitting of a lineage. For example, by this method, one can interpret when the chimpanzees and humans diverged from each other.

Answer:

H2O is not an input into the Calvin-Benson Cycle

Final answer:

For a commensal relationship between the algae and the sloth, the algae must benefit while the sloth is unaffected.

Explanation:

In order for the algae and the sloth to have a commensal relationship, the algae must benefit while the sloth neither benefits nor is harmed. In this relationship, the algae grows on the sloth, using it as a substrate for growth, while the sloth is unaffected by the presence of the algae.

Algae are a diverse group of photosynthetic organisms that can range from single-celled microscopic organisms to multicellular structures, such as seaweeds. They can be found in various habitats, including freshwater, marine environments, soil, and even in symbiotic relationships with other organisms like fungi in lichens.

Answer AND Explanation:

Chlorophyll absorbs light energy which is used to split water molecules into oxygen and hydrogen atoms. The hydrogen atoms enter the dark stage while oxygen is released in the atmosphere.

In the dark stage carbon dioxide combines with hydrogen atoms to form simple sugars such as glucose.

Answer:

Chlorophyll absorbs light energy which is used to split water molecules into oxygen and hydrogen atoms. The hydrogen atoms enter the dark stage while oxygen is released in the atmosphere.

In the dark stage carbon dioxide combines with hydrogen atoms to form simple sugars such as glucose.

Explanation:

Answer:

Poisoning of seafood and collapse of commercial fisheries

Explanation:

Answer:

sun>Chloroplasts> mitochondria

Explanation:

Answer:

b

Explanation:

i mean for it to not move it has to be equal i believe

A soccer ball remains unmoving on a field because the normal force is equal to the gravitational force, resulting in a balanced force scenario with a net force of zero.

A soccer ball sits unmoving on a field because the normal force is equal to the gravitational force. The gravitational force, which is essentially the weight of the soccer ball, acts downward towards the center of the Earth. Conversely, the normal force, which is the force from the ground supporting the soccer ball, acts upwards and is perpendicular to the surface of the Earth. Since the soccer ball is at rest, these two forces equalize each other, resulting in a net force of zero. This scenario reflects Newton’s first law of motion, which states that an object at rest will stay at rest unless acted upon by a net external force. In this case, since the normal and gravitational forces are balanced, the soccer ball remains unmoving.

Explanation:

Each has one chlorin ring- chlorin is a form of porphyrin.

Chlorophylls  are comprised of a ringed molecule, chlorin, a hydrogenated form of porphyrin which contains a magnesium ion at the center, bonded to four atoms of nitrogen.  Varying types of Chlorophyll have side chains, which affect the absorption spectrum of the molecule for instance A has a methyl group bonded to the C7 position, while B has an aldehyle (CHO) group at this location.

Embedded within the thykaloid membrane of chloroplasts, chlorophyll a and B mainly absorb orange-red and violet-blue wavelengths and convert light energy into chemical energy for the process of photosynthesis. This occurs in the light-dependent reactions of photosynthesis, within chloroplasts of plants. The range of wavelengths absorbed by a pigment is its absorption spectrum while it reflects those outside of this range. Plants appear green as this region of light is reflected by the pigments.

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Answer:

D) 20 million years

Explanation:

Measure of evolutionary changes over time

# Differences (Mutations) x Rate of mutations

Divide by the number of species

8 x 5 million years

40 million/2
20 million years

Final answer:

Using the molecular clock method, where a mutation occurs every 5 million years, and the two species differ by eight mutations, the two species shared a common ancestor approximately 40 million years ago.

Explanation:

The concept of a molecular clock involves using the rate at which mutations accumulate over time to estimate the evolutionary divergence between species. Assuming a steady mutation rate, we can calculate the time since two species shared a common ancestor. In this instance, the mutation rate is one mutation per 5 million years. If two species differ by eight mutations, we simply multiply the number of mutations by the rate at which they occur to determine the time elapsed.

To calculate, we have:
8 mutations × 5 million years/mutation = 40 million years

Therefore, based on the given mutation rate, the two species are estimated to have shared a common ancestor around 40 million years ago.

Answer:

DNA Polymerase D

Explanation:

The enzyme that unwinds that double stranded DNA at the beginning of DNA replication

Answer:

The light absorption in chlorophyll

Explanation:

Answer:

The high energy electrons were produced by light absorption in chlorophyll to chemical reactions elsewhere in the cell.Explanation: basically the plant absolves light around the same are as photosynthes

It helps in reducing soil erosion and increases soil fertility and crop yield.

Answer:the answer is D

Explanation:

Answer:

str alleles comes from a persons father , one from their mother. DNA paternity test , the analysis seeks matches of allele number values between the alleged father and child