Answer:
to add nucleotides to a DNA primer
Explanation:
The Polymerase Chain Reaction (PCR) is a technique widely used in molecular biology in order to amplify small segments of DNA (100 to 1000 bases). PCR uses a thermostable DNA Taq polymerase that adds nucleotides to the DNA template at the position specified by short single-stranded DNA primers that bind to this template by complementary base pairing during the annealing phase of the PCR cycle. Subsequently, the DNA polymerase adds deoxynucleotide triphosphates (dNTPs) to the opposite DNA strand, this phase of the PCR cycle is known as the elongation phase. Finally, the resulting double-stranded DNA fragment is separated by heat during the denaturation step and this 3-step PCR cycle is repeated many times to amplify the target DNA region.
Research the fossil record of humans and answer these questions:
Name at least two extinct species that share a close evolutionary relationship with humans.
Explain the similarities and differences that exist between these species and humans.
Is the fossil record complete for humans? Explain your answer.
Answer:
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Answer:
Paranthropus and Giantopithecus are two extinct species that have close evolutionary ties to humans. Paranthropus is an extinct genus of extinct hominin, while Giantopithecus is an extinct genus of ape. Hominins and apes share at least 95% of their DNA with humans, so these two extinct animals probably had some evolutionary ties to humans. Humans walk on two legs and have the ability to speak, whereas both extinct animals walked on four legs. Humans and these extinct animals also share similar body makeup and bone structure. The fossil record of humpback whales is probably incomplete because everything is continuously changing due to evolution.
Self-report inventories and projective tests are examples of personality assessments,
Please select the best answer from the choices provided
True or false
It is true that Self-report inventories and projective tests are examples of personality assessments.
What are Self-report inventories?An individual fills out a survey or questionnaire for a self-report inventory, a sort of psychological examination, with or without the assistance of the researcher.
Self-report questionnaires frequently pose direct questions on a person's preferences, morals, symptoms, actions, and personality types.
A projective test is a personality test used in psychology that asks subjects to respond to ambiguous stimuli, ostensibly to discover hidden emotions and internal conflicts that the subject then projects onto the exam.
A projective test asks participants to freely respond to stimuli intended to disclose personal needs, sentiments, or personality traits as opposed to a self-report inventory, which asks predefined questions intended to represent a specific characteristic.
Thus, the given statement is true.
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A group of ponies lives in Chincoteague National Wildlife Reserve in Virginia. What could cause the development of longer legs to be selected over time?
Answer:
sorry i dont know
Explanation:
follow and ill try to help next time!
Answer: d. a cause might be the increase of survival rate of the long-legged ponies.
Which is an example of how stem cells are currently being used
Answer:
In stem cell transplants, stem cells replace cells damaged by chemotherapy or disease or serve as a way for the donor's immune system to fight some types of cancer and blood-related diseases, such as leukemia, lymphoma, neuroblastoma and multiple myeloma. These transplants use adult stem cells or umbilical cord blood.
i hope this helps u
Explanation:
What are the two types and functions of vascular tissue?
Answer:
Vascular tissue transports water, minerals, and sugars to different parts of the plant. Vascular tissue is made of two specialized conducting tissues: xylem and phloem. Xylem tissue transports water and nutrients from the roots to different parts of the plant, and also plays a role in structural support in the stem. Phloem tissue transports organic compounds from the site of photosynthesis to other parts of the plant. The xylem and phloem always lie adjacent to each other in a vascular bundle
Explanation:
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Answer: chloroplast are only found in plants.
mitochondria is found in both.
cell wall and large vacuoles are both found in plants
Explanation: Cell wall and large vacuoles are both found in plants
Because plants can't move to get need materials.
Which statement best describes what happens during mitosis
Answer:
Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell? divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.
Answer:
the nucleus divides into two identical nuclei
Explanation:
When one gram of liquid water at its boiling point is changed into water vapor
Answer:
Water needs 40.65 kJ/mole of energy.
Explanation:
One gram of liquid water changed into water vapor at its boiling point, energy is required called the heat of vaporization. Water has a heat of vaporization of 40.65 kJ/mol. Hydrogen bonding is present between water molecules so to break this hydrogen bond, heat energy is required. This heat energy is different for different liquids, water needs 40.65 kJ/mole of energy to break the bond and change into vapors.
Why can't i view a specimen on a slide on the microscope
Explanation:
Specimen too dark if you place a large and dark specimen on the stage, then the light of the microscope is not able to pass though the object. You will not be able to see anything except a dark shadow without much detail. In this case you must either cut the specimen into thin sections, tear it apart or squash it.
Would you expect human DNA to be more closely related to tiger or jellyfish?
Why do bases have to be read in groups of 3?
9. True or false, Particles are never sucked, particles only push
Answer:
false
Explanation:
suction is not really a real thing
2 What is occurring during the flow phase of the menstral cycle?
Fertilization occurs near the ovary.
The amniotic sac is torn.
O Amorula is formed in the uterus.
O Tissues are shed from the endometrium.
Answer:
Explanation:
Tissues are shed from the endometrium
8. Black fur (F) is dominant over white (f). Cross a heterozygous black fur parent
and a white fur parent. Select ALL (hint: more than one answer) of the
probabilities present in the offspring of this Punnett square.
0% black offspring
25% white offspring
50% white offspring
75% black offspring
✓ 50% white offspring
100% white offspring
Answer:
50% white offspring
50% black offspring
Which of the following accurately describes the function of transfer RNA?
1. The tRNA transfers the genetic message from the DNA molecule to the messenger while it is still in the nucleus.
II. This type of RNA molecule transports amino acids from the cytoplasm to the ribosomes to build proteins.
III. Transfer RNA is responsible for reading anti-codons and transferring codons to the appropriate ribosomes.
Answer:
II. This type of RNA molecule transports amino acids from the cytoplasm to the ribosomes to build proteins.
organisms can change in order to adapt to their conditions. what might a plant growing in a dark corner of an otherwise sunny room do to adapt to its conditions and what is this responsce called?
Answer:
it might maintain homeostasis
Explanation:
Can someone help me please !
Answer:
D: Shaped like and "X"
Explanation:
DNA is not shaped like an X. it is shaped like a double Helix.
yes, dna is shaped like a double helixyes, dna is a large complex polymer of nucleic acidsyes, dna does carry genetic code. NO dna is not shaped like an XChoose the letter of best answer from 2nd column that matches the description in the first column
If human-caused carbon dioxide emissions remain at current levels, what
are likely future scenarios?
Choose all that apply:
The ocean will continue to warm and become more acidic.
Global temperatures will continue to rise.
Ocean levels will drop. This negatively affects many coastal areas.
Glaciers will become larger. This causes a lot of water to be trapped in an
unusable form
Landslide is an inevitable process in hilly areas. Do you agree with this statement? Why?
Answer:
In hilly areas, the landforms are generally sloped and heavy rainfall loosens the material. When the right combination of materials, moisture, and steepened slope angle (i.e. increased gravity) makes a hillside unstable, a slide or flow is inevitable.
Explanation:
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What are the five causes of environmental problems?
Answer:
Biodiversity. Biodiversity is the most complex and vital feature of our planet. ...
Water. Water pollution is a huge concern for us and our environment. ...
Deforestation. We need plants and trees to survive. ...
Pollution. ...
Climate Change.
Explanation:
List at least three multicellular organisms (I will give brainalist + 10 points)
pick one organ in the human body and describe how the structure (shape, size, location) of that organ is related to its function (job, responsibilities) 1- 2 sentences.
Answer:
The kidney consists of an inner renal medulla and an outer renal cortex. Between these is a flow of Nephrons. They work together to create urine.
NEED HELP ASAP Mutation reinforcement practice and DNA sequence, mRNA sequence, amino acid sequence
Answer:
um i think it a im only do this for pionts
Explanation:
An increase in the Earth's temperature would _____.
cause less meteors to fall
melt the polar ice caps
freeze water into ice
not affect the Earth
Answer:
melt the polar ice caps.
Answer:
melt the polar ice caps
Explanation:
an increase in Earth's temperature is global warming. Global warming affects the ice caps. therefore, an increase in temperature will melt the ice caps
what is respiratory system
Answer: The respiratory system is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary history.
Use the graph to answer question 1.
Which type of information about rattlesnakes does the bar graph show
(10 Points)
Answer:
Variation
Explanation:
I took the test
Question 7 of 10
Which of the following is the best hypothesis?
A Water is often warmer than air
B. More energy is needed to heat 100 g of water than to heat 100 g of
O C. How much energy do I need to heat 100 g of water from 20°C to
40°C?
O D. Water and Air would be a good name for a rock band,
Answer:
A and B sound like they are real answers
Explanation:
Gavin learns in science class that small objects such as meteoroids and debris can move through space at such high speGavin learns in science class that small objects such as meteoroids and debris can move through space at such high speeds that they can damage or puncture the sides of space vehicles. He decides to design an experiment based on this information. Gavin uses an empty shoe box, a sheet of paper towel, and tape to build a model of a spacecraft. Then, he shoots a pea at the paper towel part of the model using a straw pea shooter. For his first trial, Gavin shoots a 3.0-gram pea at the model. Its speed is measured at 12 meters per second as it leaves the straw. The pea does not break the paper towel, but it bounces back off and lands on the ground.eds that they can damage or puncture the sides of space vehicles. He decides to design an experiment based on this information. Gavin uses an empty shoe box, a sheet of paper towel, and tape to build a model of a spacecraft. Then, he shoots a pea at the paper towel part of the model using a straw pea shooter.
Answer:
When the pea hit the paper towel, the paper towel applied an equal but opposite force on the pea.
Explanation:
A meteoroid is a piece of stony debris that float in space and move around the sun in different orbits and speeds in the Gavin experiment.
When the Meteoroids enter into Earth's surface?Meteoroids enter into Earth's surface with a high speed as shooting stars and called meteors. Meteors move through the atmosphere and landed on the surface and it is called a meteorite.
He decides to design an experiment based on this information. Gavin uses an empty shoe box, a sheet of paper towel, and tape to build a model of a spacecraft. Then, he shoots a pea at the paper towel part of the model using a straw pea shooter.
Gavin uses an empty shoe box, a sheet of paper towel, and tape to build a model of a spacecraft. Then, he shoots a pea at the paper towel part of the model using a straw pea shooter. For his first trial, Gavin shoots a 3.0-gram pea at the model.
Therefore, A meteoroid is a piece of stony debris that float in space and move around the sun in different orbits and speeds.
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how is our understanding of evolution influenced by our knowledge of genetics?
Answer:
Explanation:
Genetics play a key part in understanding evolution. While two organisms may bear similar or no resemblance whatsoever to each other, their genes can tell us whether or not they were related- and creatures that show change (especially dramatic change) show us evolution through genetics.