Which of the following helpWhich of the following helps to lubricate a moveable joint?s to lubricate a moveable joint?

Answer:

Phytoplankton

Explanation:

I am almost positive.

Answer:

DNA: 2 strands, Deoxyribose, Nucleus, A pairs with T

RNA: 1 strand, Ribose, Nucleus & Cytoplasm, A pairs with U

Explanation:

Answer:

true

Explanation:

true, bc pheno, determines on geno.

Answer:

true

Explanation:

b.infectious disease specialist and virologist

c.zoologist,marine biologist and animal biologist

Answer:

1a. The template DNA strand, from which the mRNA is synthesized, is 5’ CAAACTACCCTGGGTTGCCAT 3’

(RNA synthesis proceeds in a 5’ à 3’ direction, so the template strand and the mRNA will be complementary to each other)

b. The coding DNA strand, which is complementary to the template strand, is 5’ ATGGCAACCCAGGGTAGTTTG 3’

c. The sequence of the mRNA is 5’ AUGGCAACCCAGGGUAGUUUG 3’

(the sequence of the mRNA is complementary to the template strand and identical to the coding strand with U substituted for T)

d. The third codon is 5’ ACC 3’.  Therefore, the corresponding anti-codon is 5’ GGU 3’

2. Below is a table for the genetic code:

T

C

A

G

T

TTT Phe (F)

TTC "

TTA Leu (L)

TTG "

TCT Ser (S)

TCC "

TCA "

TCG "

TAT Tyr (Y)

TAC "

TAA Stop

TAG Stop

TGT Cys (C)

TGC "

TGA Stop

TGG Trp (W)

C

CTT Leu (L)

CTC "

CTA "

CTG "

CCT Pro (P)

CCC "

CCA "

CCG "

CAT His (H)

CAC "

CAA Gln (Q)

CAG "

CGT Arg (R)

CGC "

CGA "

CGG "

A

ATT Ile (I)

ATC "

ATA "

ATG Met (M)

ACT Thr (T)

ACC "

ACA "

ACG "

AAT Asn (N)

AAC "

AAA Lys (K)

AAG "

AGT Ser (S)

AGC "

AGA Arg (R)

AGG "

G

GTT Val (V)

GTC "

GTA "

GTG "

GCT Ala (A)

GCC "

GCA "

GCG "

GAT Asp (D)

GAC "

GAA Glu (E)

GAG "

GGT Gly (G)

GGC "

GGA "

GGG "

a. The following codons can be mutated by one base to produce an amber codon:

CAG    Gln

AAG    Lys

GAG    Glu

TCG    Ser

TTG    Leu

TGG    Trp

TAA    Stop

TAT    Tyr

TAC    Tyr

b. From part a, CAG (Gln) and TGG (Trp) can become amber stop codons through EMS.

c. From part b, both of the resulting amber codons could be suppressed by amber nonsense suppressors generated by EMS.

3a. The codon is the three nucleotide sequence in the mRNA that indicates which amino acid should be incorporated in the growing polypeptide chain.  The anticodon is the complementary three nucleotide sequence in the appropriate tRNA.

b. Template strand is the DNA strand off which the mRNA is synthesized.  The coding, or non-template, strand is the DNA strand complementary to the template strand; it has the same sequence (except for T for U substitutions) as the mRNA.

c. The Pribnow box is a sequence of six nucleotides (TATAAT) positioned at -10 that signals where transcription initiation should begin in prokaryotic DNA.  The Shine-Delgarno sequence is a short, purine-rich region in the mRNA that is complementary to the rRNA within the 16S ribosomal subunit.  The sequence signals which AUG acts as the translation start in mRNA.

4a. False, a wobble allows the anticodon in the tRNA to hybridize with different codons in mRNA.

b. False, a frameshift mutation affects all the subsequent amino acids.

c. False, only one codon (AUG) encodes for the start of protein synthesis; three codons signal the end of protein synthesis.

d. False, the wobble is first base (5’ to 3’) in the anticodon.

e. True, RNA can be used as a template for DNA synthesis in a process known as reverse transcription.

f. True.  For example, a single base substitution causing CAT to change to AAT would signal a termination.

g. False, the Wobble Hypothesis explains how alternate base pairing can occur with the first nucleotide (going from 5' to 3') in the anticodon.

5a. Digestion of RNA with alkali will cleave the strand after each 3’ phosphate.  Therefore, the products remaining will consist of pppNp, Np, and N-OH

b. If RNA was synthesized in the 3’ to 5’ direction (i.e. by adding ribonucleotides to the 5’ end), then the pppNp and Np fragments should be labeled with tritium.

c. If RNA was synthesized in the 5’ to 3’ direction (i.e. by adding ribonucleotides to the 3’ end), then the Np and N-OH fragments should be labeled with tritium.

d. Since the N-OH fragments were labeled with tritium, RNA synthesis must occur in a 5' to 3' direction.

6. In a missense mutation, the new nucleotide alters the codon so as to produce an altered amino acid in the protein product.  With a nonsense mutation, the new nucleotide changes a codon that specified an amino acid to one of the stop codons (TAA, TAG, or TGA). Therefore, translation of the messenger RNA transcribed from this mutant gene will stop prematurely.

Explanation:

:)

Answer:

A lunar eclipse can happen only when the moon is directly opposite to the sun in the sky with the earth in between.

...

Solar eclipse and lunar eclipse differences (Surya Grahan vs Chandra Grahna)

Solar eclipse (Surya Grahan) Lunar eclipse (Chandra Grahan)

Happens once in 18 months. Occurs two times in a year.

Answer:

upper and lower seasonal

Explanation:

Answer:

B

Explanation:

Answer:

Polymerization

Explanation:

for std.10 it can be combination reaction

but molecules are formed by reaction between non metal and non metal.

and product of combination reaction (between metal n nonmetal) is a compound

Answer:

the first one :))))))))

Explanation:

Cell groups that have the same function.

Answer:

Evolution.

Explanation:

Evolution is the gradual change that occurs in the genetics of an organism. Change in environment of an organisms play an important role in evolution. Evolution leads to the change in the physical structure of an organisms that is compatible to that environment so gradual change occurs in the genetics of the moth having gray wings which helps the moth to hide in the ash.

Answer:

Independents are all the different liquids used ie: soaps, water, hand sanitizer.

Dependent is the bacteria growth.

Explanation:

This is because you are constantly change the liquids so that is independent. The bacteria growth is dependent since the growth depends on the different liquids.

Answer:

The greater an object's mass the stronger the gravitational force on it.

The greater an object's mass, the stronger the gravitational force on it.

The force of gravity depends directly on the mass of the objects and inversely on the distance between them. Therefore, an object with a greater mass will have a stronger gravitational pull on other objects, regardless of their distance apart.

The weight of an object is a measure of the force of gravity on it and is equal to the object's mass multiplied by the acceleration due to gravity. So, while mass and weight are related, they are not the same thing. Mass is a measure of an object's amount of matter, while weight is a measure of the force of gravity acting on an object.

Learn more about gravity, here:

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Answer:

!!!FALSE!!!

Explanation:

Answer:

a,1 b,2 c,3 d,4

Explanation:

Answer:

A cheetah living in a zoo lives 10 years longer than average.

Explanation:

because Cheetahs living in captivity generally live a great deal longer than those in the wild, the life span of wild cheetahs is about 8 to 10 years, as opposed to 12 to 17 years for those in captivity according to the National Zoological Park, a sure fire sign of a healthy life.

The best example of natural selection is that the shell of a crab becomes harder over time as a result of being hunted by a predator, which is mentioned in Option 2, as the other options are not absolutely correct for it.

Natural selection is the process where certain traits that are advantageous to an organism's survival and reproduction become more common in a population over time. In option (2), the harder shell of a crab is an adaptation that helps the crab avoid being preyed upon by its predator. As a result, the crabs with harder shells are more likely to survive and reproduce, passing on their advantageous trait to their offspring. Over time, the population of crabs will have a higher proportion of individuals with harder shells, leading to the evolution of this trait in the population.

Hence, the best example of natural selection is that the shell of a crab becomes harder over time as a result of being hunted by a predator, as mentioned in Option 2.

Learn more about the process of natural selection here.

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Answer:

Can of soup.

Explanation:

Can of soup will provide 1 mole of sodium in the least mass because the concentration of sodium in can of soup is higher than other food items. The can of soup has 300 mg of sodium while on the other hand, honey nut, frosted flakes, Oreos and pop Tarts has 190 mg, 150 mg, 80 mg, and 180 mg of sodium respectively which is lower than can of soup so we can say that less amount of soup provides more sodium.

Answer:

Meaningful insights

Explanation:

took the quiz and got it right

Answer Ruminants differ from non-ruminants (called monogastrics) because they have a four-chambered stomach. The four compartments are called the rumen, the reticulum, the omasum, and the abomasum. The rumen and the reticulum are connected and work in concert and are therefore sometimes called the “reticulorumen”.:The digestive enzymes of these animals cannot break down cellulose, but microorganisms present in the digestive system can. Since the digestive system must be able to handle large amounts of roughage and break down the cellulose, pseudo-ruminants have a three-chamber stomach. hope this helps have a nice night ❤️❤️❤️

Explanation:

Explanation:

ruminant animals have 4 intestine

Answer:

The conditions under which a particular enzyme is most active are called the optimum conditions

Explanation:

When an enzyme is most active the rate of the biological reaction it catalyses is highest. The bacterium Thermus aquaticus lives in hot springs. Its enzymes have an optimum temperature of around 70 oC.

Explanation:

I'm not too sure but I would find the molar mass of nitrogen dioxide and then divide.

N - 14.01

O - 16.00

(14.01) + 2(16.00)

14 01 + 32.00 = 46.01

14.01 / 46.01 = 0.3044....

30.4%

32 / 46.01 = 0.6955....

69.6%

Answer:

Eukaryotic cells have a true nucleus, which means the cell's DNA is surrounded by a membrane. Therefore, the nucleus houses the cell's DNA and directs the synthesis of proteins and ribosomes, the cellular organelles responsible for protein synthesis.

OR

In the nucleolus, new ribosomal RNA combines with proteins to form the subunits of the ribosome. The newly made subunits are transported out through the nuclear pores to the cytoplasm, where they can do their job.

The nucleolus inside the nucleus produces ribosome components, which are synthesized just outside of the nucleus form ribosomes.

The spindle then sends mRNA towards the ribosomes, which is used to code for protein synthesis.

Other organs in the cell, including the mitochondria and lysosomes, are surrounded by lipid membranes that isolate them from other components in the cell. 

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Answer:

Biome greatly affect the plant and animal life it contains.

Explanation:

The environmental conditions in the biome greatly affect the plant and animal life that are present in it because only those animals and plants survive or present in that environment who adapted their selves or show tolerance in that environment. If there is change occur in the climatic condition of that environment the animals and plants that have resistance will survive while others disappear or eliminated from that environment.

Answer: (Answers may vary.)

I used this website, that provides US climate data, to obtain climate data for Barrow, Alaska. This part of Alaska has a tundra biome with the following conditions:

Annual high temperature: -8.2°C

Annual low temperature: -14.2°C

Average temperature: -11.2°C

Average annual precipitation (rainfall): 115 mm

Average annual snowfall: 990 mm

Barrow is covered in ice and snow for nine months of the year. During spring, millions of birds return to the area from their southern wintering grounds. Thousands of bowhead and beluga whales also migrate through the area in spring. In this region, the warm and wet period only runs from July to August. Most plants grow during this time. Food is scarce during the coldest period, which runs from December to March. During this time, many animals hibernate to survive.

Explanation: edmentum/plato

Answer:

Blood doping

Explanation:

This is called blood doping and many athletes have used it (its cheating btw). They'll go to a place with high elevation and train and then take their blood. After they go back to a lower elevation they inject that blood back in and it allows them to be able to perform better. So in this case, the cyclist would be able to perform better over her competitors (more energy/able to exert more energy for longer period of time, etc.)

Answer:

Black Mice

Explanation:

A term that refers to the survival of only those organisms best able (fittest) to obtain and utilize resources, resulting in the evolution of organisms that are best adapted to the environment.

Answer: Protists are unicellular eucaryotes, which therefore have a nucleus. They live in moist environments and are not photosynthetic, although Euglenoides, which can be photosynthetic are sometimes classed as protists, sometimes as plants.

Explanation:

Answer:

Protists are organisms composed of one or more cells.

Protists’ cells contain a nucleus.

Protists reproduce aseually or seually.

Protists live in moist environments.

Explanation:

I got it right <3