the answer is false Because it is so thin, DNA cannot be seen by the naked eye unless its strands are released from the nuclei of the cells and allowed to clump together.
What would the molecular formula be for the following? For each answer, state what kind of bonds hold the molecule together (ionic, polar-covalent, or non-polar covalent)
a. Flourine reacting with sodium
b. Oxygen reacting with carbon
c. Nitrogen reacting with hydrogen
d. Silicon reacting with hydrogen
e. Sulfur reacting with hydrogen
f. Magnesium reacting with oxygen
Answer:
Explanation:
A. sodium fluoride = NaF = ionic bond
B. carbon dioxide = CO2 = polar covalent bond
C. hydrogen nitrate = 2NH3 = ionic bond
D. silicon hydride = Si nH 2n+2 = polar covalent bond (i think.. could be non-polar but definitely not ionic)
E. hydrogen sulfide = H2S = non-polar covalent bond
F. magnesium oxide = MgO = ionic bond
hope this helps! :)
What is the role of helicase in DNA replication?
Answer:
The helicase is essential because they separate the double-stranded DNA into single strands so that it could be copied.
Hoped this helped!
The color of a light wave is determined by its wavelength. On the COLOR tab, slowly drag the Light wavelength slider back and forth and observe the effect on oxygen production. How does the color of light affect the rate of photosynthesis
Answer:
The color of light determines how effective chlorophyll pigment will be at absorbing light.
Explanation:
Photosynthesis is a metabolic process that requires light, which is an electromagnetic radiation. Light on the electromagnetic spectrum is determined by wavelength. Each region/color of light occurs at a specific wavelength.
Hence, chlorophyll pigment, which is the major photosynthetic pigment effectively absorbs blue and red light in the visible light region of the electromagnetic spectrum. Hence, the rate of photosynthesis will be affected negatively if the color of light is not the one stated above.
which of the following statements about the cells of any multicelluar organisms is true
Answer The DNA in a cell is all the same
Explanation:
Place the following events in
the cell cycle in the proper
order:
a. Anaphase
b. Cytokinesis
C. G2
d. Telophase
e. G1
f. Prophase
8. S
h. Metaphase
The cell cycle in the correct order is G1, S, G2, Prophase, Metaphase, Anaphase, Telophase, and Cytokinesis.
What is the cell cycle?Prophase, metaphase, anaphase, and telophase are the four phases that a cell goes through. To form chromosomes, chromatin condenses (sister chromatids joined at the centromere).
In prophase, the chromosomes get shorter and thicker, in the center of the cell, during the metaphase, the chromosomes align. Chromatids separate during the anaphase process and travel to the opposing poles.
Telophase: Two nuclei are produced when nuclear envelopes have reformed around each chromosomal group.
Therefore, the cell spends the majority of its time in interphase, which is also when it grows, duplicates its chromosomes, and gets ready to divide.
Learn more about cells, here:
https://brainly.com/question/1600165
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Describe how the gonorrhoea pathogen causes disease after it enter the body
Answer:
Gonorrhea is transmitted through sexual contact with the penis, vagina, mouth, or anus of an infected partner. Ejaculation does not have to occur for gonorrhea to be transmitted or acquired. Gonorrhea can also be spread perinatally from mother to baby during childbirth.
Which of the following statements is true?
OA. Chemical reactions can either absorb thermal energy or release thermal energy
ОВ.
Chemical reactions can only absorb thermal energy.
OC.
Chemical reactions can neither absorb thermal energy nor release thermal energy.
OD.
Chemical reactions can only release thermal energy.
Answer: Chemical reactions can either absorb thermal energy or release thermal energy.
When human undergo anaerobic respiration , they
When humans and other animals lack sufficient oxygen, they'll create ATP through a form of anaerobic respiration that produces lactic acid as a byproduct. ... Yes 'Anaerobic' means 'without oxygen. Cells will produce ATP through lactic acid fermentation only under when they lack sufficient oxygen.
Answer:
They experience sore muscles
Explanation:
Have a nice day lol <3
1. Which of the following is NOT a characteristic of life.
A. Being Multicellular
B. Responsiveness to the Environment
C. Growth and Change
D. Maintain Homeostasis
Answer:
it may be a or d but b and c are a characteristic in life
3.4 Briefly describe the purpose of conjugation in paramecia.
Answer:
Conjugation is a process of exchange of genetic material between two organisms. paramecium is a unicellular protozoan in which true sexual reproduction is absent. so in these organisms conjugation brings genetic variatin in new generations.
Explanation:
The function of conjugation in paramecium is to exchange genetic material between organisms and make new combinations of genetic material.
What causes the earths tides; describe the conditions for the largest tides?
Answer:
Earth's rotation and the gravitational pull of the sun and moon create tides on our planet. Because the sun is so much larger than the moon (27 million times more masssive), it has a much bigger graviational pull on Earth.
Example on one of the 3 laws of motion
Answer:
Newton's First Law of Motion
Explanation:
A body at rest persists in its state of rest, and the body in motion remains in uniform motion along a straight line unless acted upon by a net external force.
unlike eukaryotes prokaryotes do not contain a system of internal membranes. Any organelles, proteins, and genetic material are free - floating within the cytosol. Select the description below that correctly identifies how protein synthesis differs in prokaryotic and eukaryotic cells as a result of eukaryotic compartmentalization.
A. RNA processing occurs outside of the nuclear membrane in prokaryotes and inside it in eukaryotes.
B. Translation can occur before transcription in a prokaryote but not in a eukaryote.
C. Transcription and translation can occur simultaneously in a prokaryote but not in a eukaryote.
D. Ribosomes are needed for translation of mRNA in eukaryotes, but they are not needed in prokaryotes.
Answer:
The difference in protein synthesis in prokaryotic and eukaryotic cells, due to the compartmentalization of the latter, is that transcription and translation can occur simultaneously in a prokaryote but not in a eukaryote (option C).
Explanation:
Eukaryotic cells are characterized by a true nucleus, surrounded by a nuclear membrane. Since transcription occurs in the nucleus and translation for protein synthesis occurs in the cytoplasm, the former process occurs before the latter.
In prokaryotic cells the absence of a nucleus and compartmentalization system makes it possible for transcription of DNA into RNA and translation to occur simultaneously.
The other options are not correct because:
A. RNA processing, in both prokaryotes and eukaryotes, occurs in the cytoplasm.
B. Transcription precedes translation in all organisms.
D. Ribosomes are present and are necessary for protein synthesis in both prokaryotes and eukaryotes.
If I put down an apple next to a banana will it ripen faster?
Answer:
no
Explanation:
A Class-A 10 mL pipette is supposed to dispense 10.00 mL of water. A lab technician makes three measurements of the volume that the pipette actually dispenses, and obtains volumes of 9.70 mL, 9.69 mL, and 9.71 mL. The pipette is:__________
a) Accurate, but not precise
b) Precise, but not accurate
c) Accurate and precise
d) Neither accurate or precise
Answer:
d) Neither accurate or precise
Explanation:
Accuracy and precision are critical factors in the experimental procedure. Accuracy can be defined as the amount of uncertainty in the process of measurement in relation to the true value (in this case, 10 mL). On the other hand, precision is an independent feature of the accuracy which indicates the repeatability of the measurement process (in this case, three measures weren't repeated). Therefore, precision indicates the confidence of a particular measurement, while accuracy indicates how close is this value to the real value.
2. Insects which attack woollen clothes are
a. Silkworm b. silver fish c. ants d. butterflies
Answer:
a
Explanation:
it would be a silkworm because they feed exclusively on animal fibers such as wool. hope this helps!
which of the following is necessary for cellular respiration and photosynthesis to occur
Answer:
Sunlight!
Explanation:
Sickle cell anemia and albinism are both recessive traits in humans. Imagine that a couple, already pregnant with fraternal twins, has just learned that they (the couple) are both heterozygous for both of these traits. As the couple's genetic counselor, the couple asks you what is the probability of having both of the twins be albino and have sickle-cell anemia.
Answer:
81/256
Explanation:
By doing a test cross of albinism and sickle cell anemia you'll see that the probability that one child is unaffected by either conditions will be 9/16. Both children would be 9/16 * 9/16.
Since fraternal twins are developed from two separate fertilization events the probability chance will be independent.
Where does the water that a land plant uses for photosynthesis come from? The water comes from _____.
-Evaporation
-Condensation
-Precipitation
Answer:
precipitation
Explanation:
Through which of the following processes are plant communities taking over the ecosystem
Answer:
Climate disturbance
Explanation:
HELP PLEASE DO THE WHOLE PAGE
Answer:
'krf'klmf
Explanation:
lkn4f4klng
when you move your hand up and down while holding on a jump rope, you make a wave. What is the medium
Answer:
The medium of the wave is the Rope.
Explanation:
This is because it is transverse wave and transverse wave need a medium to transfer energy and this is because in transverse wave,particles of the medium move in a direction that is perpendicular to the direction of the transverse wave. From the question, when you move you hand up and down, you make a wave and the direction of the wave is also up and down which is perpendicular to the direction of the wave.
