The information a cell requires to meet its needs is stored in its nucleus
which of the following can be changed during meiosis? Is it a base sequence, a number of amino acids, a number of chromosomes, or a gene sequence
Answer:
Number of chromosomes
Explanation:
Meiosis is a specialized type of cell division in which the gametes are produced.
A diploid parent cell first replicates its DNA. Then, two rounds of cell division occurs to produce 4 haploid cells, each with half the amount of chromosomes. These gametes fuse during fertilization to restore the diploid state.
Therefore, meiosis changes the number of chromosomes.
Which of the following remains would be most likely only be found as a compression fossil?
a shell
a leaf
a mammoth
a dinosaur
Answer:
A leaf
Explanation:
3
Based on the thin layer of sediment on his flooded farm,
James Hutton concluded that strata:
A Are made of large rocks
B
Settle in vertical layers
C
Are formed by catastrophes like floods and earthquakes
D
Take many thousands of years to form
Answer:
D. Take many thousands of years to form
Explanation:
James Hutton discovered thin layers of sediments on his flooded farm and he concluded that strata was part of the earth surface in the past and thus takes many thousands of years to form.
This led to the principle of uniformitarianism which states that the geologic processes now are the same with the ones in the past.
What is the atomic number of this atom?
a
O 8
O 13
09
O 5
04
Question 1: This diagram shows the process of translation. Which statement is correct?
A. The mRNA code determines which tRNA molecules are used
B. The molecule of tRNA is taking away amino acids one at a time.
C. The amino acid chain is held together by mRNA
D. The molecule of tRNA bonds with mRNA before it bonds to an amino acid.
Question 2: The diagram above represents a biochemical process that occurs in a cell. The purpose of this process is to synthesize_________?
A. Messenger RNA
B. Carbohydrates
C. Deoxyribonucleic Acids
D. Proteins
Question 3: Scientist continually work to better understand human diseases. Knowledge of the human genome enables them to better understand the proteins involved. How does analyzing human genomes help scientists in this endeavor?
A. Chromosomes join together to make proteins.
B. The bases that make up DNA are also present in RNA
C. DNA contains the information used to make proteins.
D. Nucleic acid molecules have shapes similar to those of proteins.
Question 4: Which component of the genetic code differs between DNA and RNA?
A. Three nucleotides per codon
B. The presence of adenine (A) in codons
C. The presence of uracil (U) in codons
D. The presence of amino acids in codons
Question 5: What mRNA sequence will best match the section of DNA shown below?
A. G – A – T – C – C – T
B. C – T – A – G – G – C
C. C – U – A – G – G – A
D. T – C – G – A – A – G
Answer:
i think its B C D C and A
Explanation:
Hope this helps
The mRNA code determines which tRNA molecules are used. The purpose of this process is to synthesize protein. DNA contains the information used to make proteins. The presence of uracil (U) in codons makes difference between DNA and RNA. The correct options are A, D, C, C, and C respectively.
What is nucleic acid?Natural chemical substances called nucleic acids are the main information-transporting molecules in organisms.
They are particularly crucial in controlling protein synthesis. Deoxyribonucleic acid (DNA) and ribonucleic acid are the two primary types of nucleic acids (RNA).
That tRNA molecules are utilized is determined by the mRNA code. The creation of protein is the aim of this procedure.
The instructions needed to create proteins are found in DNA. Codons that contain uracil (U) distinguish between DNA and RNA as RNA possesses uracil in plane of thymine in DNA.
In the sequence given in the second image, the sequence of the mRNA will be C – U – A – G – G – A.
Thus, the correct options are A, D, C, C, and C respectively.
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Your question seems incomplete, the missing images are:
A mutation has occurred that results in a drastic reduction in mRNA transcription from very high levels to low levels. What region is likely responsible?
Answer:
Enhancer region
Explanation:
An enhancer is a cis-regulatory DNA region that binds to transcription factors in order to stimulate transcription. Enhancer regions are localized both upstream and downstream of the gene whose transcription regulates, at a variable distance ranging from 1 to 100 kilobases (kb) from the transcription start site. The first enhancer to be identified was found in an intron of the immunoglobulin gene. Conversely, a silencer element is a DNA region that binds to proteins known as repressors in order to suppress transcription.
Which ideas are part of the cell theory? Check all that apply.
All living things are made of cells.
All nonliving things are made of cells.
Cells come from nonliving things.
Cells come from other cells.
Only unicellular organisms are made of cells.
Cells are the smallest living part of a living thing.
Cells function to keep the cell, and the organism, alive.
Answer:
All living things are made of cells.
Cells come from other cells.
Cells are the smallest living part of a living thing.
Cells function to keep the cell, and the organism, alive.
Explanation:
got it right on edginuity 2020.
Your friend tells you that there is no starch in the homemade cookies she gives you. You like her, but you are not too sure that she really knows what ingredients might or might not contain starch. When you get the cookies home, what test could you do to quickly test to see if there was starch in the cookies?
Answer:
add iodine solution and look for a color change. If starch is present the color change should be blue/black
If a DNA sequence has 14 nucleotides what is the maximum number of amino acids that can be coded
The descriptive term for plants that are sturcturally adapted to withstand protracted dry conditions is ___________.
Answer:
Xerophytic
Explanation:
It is xerophytic and it is gotten from Greek word, Xeros( dry) and phutons(plants). It is an adaptive term that is use to describe plants species that posses structural adaptive features which make them to adapt and survive in areas where there is little water or dry region like desert, or area covered with ices by possessing some mechanism which help them to reduce water loss or concerns water. Examples include cactus, pineapple and some Gymnosperm plants. Some of these plants species posses extensive root system and their leaves are reduced to cacti which does not support water loss.
Which of the following terms cannot be used to define a virus?
Answer:
Any of a group of submicroscopic entities consisting of a single nucleic acid chain surrounded by a protein coat and capable of replication only within the cells of living organisms: many are pathogenic
In eukaryotic organisms, DNA transcription occurs in the _______ of a cell.
A.
mitochondria
B.
ribosome
C.
nucleus
D.
cytoplasm
Answer:
In eukaryotic organisms, DNA transcription occurs in the nucleus of a cell.
( help ill give u brainiest)
Which of the following anatomical directions are opposites?
A. Anterior and posterior
B. Posterior and superior
C. Anterior and superior
D. Posterior and inferior
Answer:
A
Explanation:
anterior referring to the front of the body and posterior referring to the back.
Answer:
A
Explanation:
How does eukaryotic cells divide? A DNA replication, mitosis, cytokinesis B DNA replication, chromosome segregation, cytokinesis, C mitosis, meiosis, cytokinesis or D DNA replication, meiosis, cytokinesis
Answer:
B
Explanation:
How do heredity and inheritance relate to the data presented In these charts
Your risk is greatly raised if any of these relatives have had breast or ovarian cancer. However, until many of these “secondary” relatives have the disease.
What is role of inheritance in breast cancer?A woman's risk of breast cancer nearly doubles if she has a first-degree family (mother, sister, or daughter) who has the disease.
Her risk is nearly three times higher if she has two first-degree relatives. A woman's risk of developing breast cancer is considerably higher if her father or sibling had the disease.
Gene changes that are connected to breast cancer are typically acquired. Only the breast cancer cells experience acquired DNA alterations over time.
Therefore, Hereditary is Breast cancer and Inheritance is Getting Breast Cancer, basically it runs in the family inheriting.
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Which of the following is NOT a statement from the cell theory?
O All cells come from pre-existing cells.
•All cells require water for survival.
•All living things are composed of cells.
•Cells are the basic unit of structure and function of living things.
Answer:
The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.
Therefore, B is the answer.
"All living cells require water for survival" is NOT a statement from the cell theory.
All cells require water for survival is not a statement from the cell theory.
What is cell theory?The cell theory is a fundamental principle in biology that states that all living organisms are composed of one or more cells and that the cell is the basic unit of life. The theory was first proposed by German scientists Matthias Schleiden and Theodor Schwann in 1839, and later refined by Rudolf Virchow in 1855. The three main principles of the cell theory are:
All living organisms are composed of one or more cells.The cell is the basic unit of life and structure for all living organisms.All cells come from pre-existing cells through the process of cell division.The cell theory is considered one of the most important and enduring concepts in biology, and it forms the foundation for understanding the structure and function of cells and the organization of life on Earth.
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Where is the subduction zone located?
Answer:
between the arachnoid and dura
Explanation:
hope it helpss
2. What does "gibbous" mean? •increasing in apparent size •decreasing in apparent size •larger than half, smaller than full •smaller than half larger than new •about half
Answer:
larger than half
increasing and decreasing in apparent size
Explanation:
Having the observable illuminated part greater than a semicircle and less than a circle. It always wax and wane
gibbous=3/4
What causes Seismic Waves?
-Release of energy along a fault
-Tsunami waves hitting the shore
-Seismograph Stations
-Hurricanes
Which of the following is an example of weather?
Answer:
Thunderstorms in New York at 3:00pm is an example of weather.
Explanation:
Answer:
a
Explanation:
The 1 _______ is the fluid component of blood?
Answer:
Plasma
Plasma is the fluid component of blood
Which gas is forming in the test tube shown
above?
A. carbon dioxide
B. hydrogen
C. oxygen
D. nitrogen
the answer is c!!
Answer:
i believe its C
Explanation:
Answer:
carbon dioxide ......is your answer
ncreased use of electricity has had a negative impact on the environment by
increasing
A. farmland
B. electric cars
c. air pollution
D. available food
. What are some consequences of using fossil fuels?
Answer:
Air Pollution
Explanation:
Burning fossil fuels emits a number of air pollutants that are harmful to both the environment and public health.
Does the process of chemosynthesis create stored energy or usable energy
a Food
b. Energy
c. Both
d. neither
Answer:
C
Explanation:
If P is the dominant gene for straight hair trait and p is the recessive gene for curly hair, match the following
Answer:
the question is not complete
PLEASE ANSWER ASAP Two organisms are found to have similarities in their DNA. What would this tell you
about these two organisms?
O The organisms are plants
O The organisms share a common ancestry
The organisms have cellular mutations
The organisms are prokaryotic
Answer:
They share common ancestors
Explanation:
DNA remain conserve for long time and genetic code dna us major source to know that if irganistims share common ancestors
this
The fish in the blue food
chain is a tertiary consumer.
What is another term for
"tertiary consumer"?
A. detritivores
B. autotrophs
C. third level consumer
D. fourth level consumer
C) third level consumer
Autotrophs differ from heterotrophs in that only autotrophs
Answer:Autotrophs differ from Heterotrophs in one fundamental way what is it
Summary. Autotrophs store chemical energy in carbohydrate food molecules they build themselves. Most autotrophs make their "food" through photosynthesis using the energy of the sun. Heterotrophs cannot make their own food, so they must eat or absorb it.May 6, 2020
Explanation:
HELLPPP FASSTTT!!!
15
The table shows a DNA sequence and three types of mutations that can change the DNA sequence.
Mutton
Original
Which mutation will cause translation to stop?
Mutation
1
ATC
UAG
Mutation
3
TCC
AGG
DNA codon
mRNA Codon
TTC
MAG
TTT
AAA
А
Mutations 1 and 3 only
B
Mutation 1 only
mRNA Codon Chart
Second Position
U
С
Mutation 2 only
w
Phe
Cys
D
Mutations 1, 2, and 3
U
VCU
uc
UCA
UCO
COU
STOP
Leu
WO
G
Leu
Ang
CUS
cud
CCA
CCG
NCU
ACC
ACDC Code Red
URU
UGU
Ty
URC
UGG
UA STOP UGA
UNG STOP UGG
CAU
COU
CGC
CAN
Gin
(CGG
MU
MU
A
The
MAC
GC
MA
MG
GAD
GOU
CAC
Asp
GA
GO
GO
le
AU
A
Sor
AUG
ThO993
MEE
G
Val
Gud
GU
God
ceu
( GCC
GEA
GCG
G
earch
(99+
W
65%
Answer: 1 hope it helps
Explanation:
Mutation 1 will cause translation to stop as there is presence of stop codon UAG, UAA, UGA.
What are the stop codons ?
In DNA or messenger RNA (mRNA), a stop codon is a sequence of three nucleotides (a trinucleotide) that tells the cell to stop making proteins. There are 64 distinct codons for trinucleotides. Three stop codons (UAA, UAG, and UGA) and 61 specific amino acids are included.Several codons, or triplet bases, make up the universal genetic code. To reduce coding errors, the standard code has developed over time. The genetic code is made up of 64 codons that are the result of the four bases in nucleic acids being permuted and combined.Since more than one codon can encode for a single amino acid, the genetic code is degenerate. Consequently, 61 of the 64 codons encode the 20 amino acids.The START and STOP codons, two punctuation marks in the genetic code, indicate the conclusion of protein synthesis in all organisms.Because it is the first codon in the transcribed mRNA to undergo translation, the codon AUG is referred to as the START codon. The amino acid methionine (Met) in eukaryotes and formyl methionine (f Met) in prokaryotes are both encoded by the most prevalent START codon, AUG. With the assistance of a few initiation factors, the t RNA recognizes the START codon AUG during protein synthesis and initiates mRNA translation.Amber (UAG), opal or umber (UGA), and ochre (UAA) are the three STOP codons. Charles Steinberg and Richard Epstein discovered Amber" or UAG and gave it the name "amber" after the German meaning of their friend Harris Bernstein's last name. In order to keep with the theme of "color names," the two remaining STOP codons were subsequently given the names "ochre" and "opal."To know more about codons check this:
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