Answer:
D ingestion
Explanation:
Sex cells divide to produce ___________________(sperm or egg).
Answer:
Egg
Explanation:
I think it a true answer
Answer:
Sperm in males and eggs in females.
Explanation:
Sex cells divide to produce both the sperm in males, eggs in females.
During replication, enzymes called ____________________ untwist the double helix, separating the two parental strands. The point at which the two chains separate is known as the _______________________.
Answer:
During replication, enzymes called helicases untwist the double helix, separating the two parental strands. The point at which the two chains separate is known as the replication fork.
Explanation:
Replication is the process of multiplication of DNA molecules where, from one molecule, two molecules with the same information as the original can be obtained.. Each new replicated DNA molecule has an original strand and a new strand, so replication is semi-conservative.
For replication to occur, the double strand of DNA must be separated, a process that requires the participation of a group of enzymes called helicases. The helicases are responsible for breaking the hydrogen bonds between the complementary bases of one strand and another.
The DNA strands, when separated, form a zipper-like image, and the point of separation between the two is called the replication fork.
The study of genes is called genetics.
The correct answer is During replication, enzymes called helicases untwist the double helix, separating the two parental strands. The point at which the two chains separate is known as the replication fork.
What is replication?Replication is the process of multiplication of DNA molecules where, from one molecule, two molecules with the same information as the original can be obtained. Each new replicated DNA molecule has an original strand and a new strand, so replication is semi-conservative.
For replication to occur, the double strand of DNA must be separated, a process that requires the participation of a group of enzymes called helicases. The helicases are responsible for breaking the hydrogen bonds between the complementary bases of one strand and another.
The DNA strands, when separated, form a zipper-like image, and the point of separation between the two is called the replication fork.
For more information about the DNA, refer to the link:-
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Will Mark BRAINLIEST!!! Can Someone Help Me With This Question.
1.) Explain why tropical rainforests contain a large variety of plants and animals.
What important event a take place during prophase I
Answer:
chromatin condenses to form visible chromosomes
the nucleus and nucleolus disintegrate
homologous chromosomes pair up to tetrads
Explanation:
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2x^2+x-6=0 solution(s)?
Answer:
-2 and 1.5
Explanation:
USE DESMOS! IT IS A FREE GRAPHING CALCULATOR SUPER USEFUL!
Bio 9th help pls! 10 points!
Answer:
4th answer
not the first since the sugar have 5 sides not sox
not the second or third since the whole nucleic acid contain C H O N P
the N comes from the nitrogen base
and the P comes from the phosphate group
Respiration and photosynthesis have the opposite raw materials and products. These two processes are known as
- Helper processes
- Similar processes
- Coupled processes
- Complementary processes
Answer:
Complementary Processes
Explanation:
Answer:complementary processes
Explanation:
(10 points) What did meteorites bring to primitive Earth?
a
bacteria
b
viruses
c
primitive cells
d
inorganic materials
Answer:
C. Primitive Cells
Explanation:
I hope u get it right and a good grade
All of the offspring produced in a test cross involving a brown rabbit and a white rabbit are brown. The result of this cross is best explained by A. Incomplete dominance B. Codominance C. Crossing over D. Dominance
Answer:
D
Explanation:
The result of the cross is best explained by dominance.
According to Mendel, when the alleles that make up a gene are different and one of the alleles is dominant over the other, the dominant allele would mask the effects of the recessive allele.
In the same vein, when the alternate version of the same trait is dominant, such trait would be expressed over the other version in heterozygous state.
Assuming that the genotype of the brown rabbit is BB and that of the white is bb. When the two rabbits are crossed:
BB x bb
Bb Bb Bb Bb
All the offspring would be heterozygous and brown in color because the brown allele is dominant over the white allele.
Hence, the correct option is D.
if any one need help with biology 2020 gcse paper 1 ,i have done it
Answer:
ok
Explanation:
I need this asaapp!!!
C I think I hope my answer helps
In the last 250 years, the amount of carbon in the air has increased by _____ percent.
options:
10%
40%
80%
stayed the same
40 percent is the answer
A researcher noticed that a similar CH2 molecular structure was also located in the plasma membrane of an animal cell. This CH2 molecular structure contained a negatively charged phosphate group. Which statement BEST describes the primary function of the CH2 and phosphate molecular structure located in the plasma membrane?
A. It contains the genetic information needed for protein production.
B. It catalyzes specific chemical reactions in the cytoplasm of a cell.
C. It stores the energy that a cell needs to perform various life processes.
D. It allows a cell to regulate the movement of materials into and out of a cell.
Answer:
it allows a cell to regulate the movement of materials into and out of a cell.
Answer:
D. It allows a cell to regulate the movement of materials into and out of a cell.
Explanation:
I got it right on my test.
The leukocyte (a white blood cell) is part of the immune system. Is it smaller or larger than the pathogens?
Answer:
I think its smaller!
Explanation:
Hope this helps!!!
Have a great day!!!<3
What gases is used ______ released ______?
Answer: Cars and Carbon dioxide
Explanation:
What gases is used cars released carbon dioxide
what is the cleanest in a school meaning less bacteria?
The cleanest in a school is the sinks. Or the bottles of Hand Sanitizer.
I dONt WaNt TO `PLaY wItH a FisHEy On Me :)
Answer:
better slap your knee
Explanation:
tiko
Answer:
your life your choice.you is free to choose
In the deep water where there is no sunlight, how do bacteria and plants create
their food?
Answer:
Bacteria and Plants use the process of chemosynthesis to create/make food using chemical reactions.
Explanation:
"Autotrophs that perform chemosynthesis do not use energy from the sun to produce food. Instead, they make food using energy from chemical reactions, often combining hydrogen sulfide or methane with oxygen. ... Bacteria that live in the deep ocean, near hydrothermal vents, also produce food through chemosynthesis."
What is an advantage and disadvantage of using 4.5-7.5 pH paper?
Answer:
The correct answer would be:
Advantage: helps in finding the exact ph value with a narrower range.
Disadvantage: You don't know the exact ph value on a regular scale.
Explanation:
The pH paper is a pH paper with a color indicator that helps in determining the pH value precisely between the 4.5 to 7.5 pH range. It is accurate in comparison to other pH papers such as 0-14 paper. One no need to guess the color between the different colors from various color mixtures as it has a more precise color reading that helps in finding accurate pH value in a narrow range.
On a regular scale, it is not as accurate and one can not find the exact value as it provides a narrow range value between 4.5 to 7.5.
What is our heart made out of?
Explanation:
blood and veins i guess.
please help me im desprit
Answer:
B
Explanation:
Write three facts about recessive heredity genes
Answer:
Recessive is a quality found in the relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent. If the alleles are different, the dominant allele will be expressed, while the effect of the other allele, called recessive, is masked...?
Explanation:
The images show fossils of a modern bird and two extinct organisms (a Tyrannosaurus Rex and an Archaeopteryx). Based on the structure of the three organisms, it can be concluded that _________. The Archaeologyx and bird have wings, while dinosaurs have limbs. So, it can be concluded that _____________.
Dropdown box #1: they share a common ancestor - they do not share the same ancestor - they are not linked through evolution.
Dropdown box #2: the Archaeologyx evolved from birds - the Archaeologyx came after dinosaurs but after birds - the Archaeologyx evolved before nonflying dinosours.
Answer:
The images show fossils of a modern bird and two extinct organisms (a Tyrannosaurus rex and an Archaeopteryx). Based on the structure of the three organisms, it can be concluded that They share a common ancestor. The Archaeopteryx and bird have wings, while dinosaurs have limbs. So, it can be concluded that The Archaeoptery came after dinosaurs but before birds.
Explanation:
Just got a 100% on the test. Have a good day!
Looking at the images, we can conclude that they share a common ancestor and the Archaeologyx came after dinosaurs but after birds.
What is evolution?The term evolution refers to changes that occur as one organism gradually disappears an another appears in its place. According to Charles Darwin, natural selection is the reason behind evolution.
Looking at the images, we can conclude that they share a common ancestor and the Archaeologyx came after dinosaurs but after birds.
Learn more about evolution: https://brainly.com/question/2725702
Help me PLEASE! Choose one answer! First one to answer get Brainliest!
16.)Small, gradual changes in the color or size of a population.
A.) Macroevolution
B.) Embryology
C.) Phylogeny
D.) Microevolution
Answer:
Microevolution
Explanation:
Micro means small so the word microevolution means small evolution
whats atp synthesis and diffusion of water?
Answer:
ATP synthase is an enzyme that catalyzes the formation of the energy storage molecule adenosine triphosphate using adenosine diphosphate and inorganic phosphate. Water moves across cell membranes by diffusion, in a process known as osmosis. hope that helps for now..
As an airplane rises through the atmosphere, machines cause the pressure inside the cabin to decrease. Why is this change in pressure necessary?
Answer:
I think D or B i hope this helps!
Explanation:
Answer: Air pressure inside the plane should match the air pressure outside the plane.
The plane needs to stay balanced.
Got it right on the test.
Describe the positions of high and low pressure and the temperature of the land and water to explain how land breezes form.
Answer:
The air over the ocean is now warmer than the air over the land. The land loses heat quickly after the sun goes down and the air above it cools too. ... This causes a small temperature gradient between the ocean surface and the nearby land at night and the wind will blow from the land to the ocean creating the land breeze.
In order for protein synthesis to occur, both transcription and translation must occur. Which of the following statements describes the difference between transcription and translation?
In transcription, the genetic code of a DNA molecule is encoded. Translation is the process of converting the DNA code into a code that RNA can use.
In transcription, an amino acid chain is encoded in a DNA molecule. Translation is the process of turning the amino acids into nucleic acids in an RNA molecule.
In transcription, a double helix DNA molecule is split into two separate single strands. Translation is the process of joining each single DNA strand with a single strand of matching RNA.
In transcription, the genetic code of a DNA molecule is transferred to a messenger RNA molecule. Translation is the process of creating an amino acid chain using the encoded messenger RNA.
Answer:
1
Explanation:
In transcription, the genetic code of a DNA molecule is transferred to a messenger RNA molecule. The translation is the process of creating an amino acid chain by using the encoded messenger RNA. So the correct option is D.
What are transcription and translation?The first step in the process of gene expression is called transcription. In this process, the DNA sequence of a gene is copied for the formation of an RNA molecule.
RNA polymerase enzymes link the nucleotides of DNA to form an RNA strand. The DNA strand is the template. For every gene in the genome, transcription is separately controlled.
The translation is the process by which an mRNA molecule encodes for a protein. The process of translation happens with the help of tRNA in the ribosomes.
Translation requires ATP which is produced by the tRNA. The tRNA in the ribosomes supplies energy to RNA for the transcription of proteins The entry of mRNA occurs by the smaller subunit of RNA and the amino acid chain extends from the larger subunit.
Therefore the correct option is D.
Read more about translation and transcription, here
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Describe the two negative impacts that deforestation causes concerning greenhouse gases?
Answer:
Without trees the greenhouse gases will affect our health and it will also decrease the amount of oxygen. With deforestation there will be less trees which means less oxygen as well as no shade for when we go hiking, and it will get rid of animal habitats.
Explanation:
Which statement correctly describes why a compound is a pure substance?
A compound is not a pure substance because each of its molecules is made up of the atoms of two or more different elements.
A compound is a pure substance because its molecule cannot be broken down into simpler particles by physical means.
A compound is not a pure substance because it is not an element, and only elements are pure substances.
A compound is a pure substance because it consists of two different elements, which are pure substances.
Answer: b. A compound is a pure substance because its molecule cannot be broken down into simpler particles by physical means.
Answer:
b
Explanation: