A set of 23 chromosomes in a human cell
contains 3.2 billion pairs of DNA bases in
sequence. On average, about how many pairs
of bases are in each chromosome?
Explanation:
The human genome contains approximately 3 billion of these base pairs, which reside in the 23 pairs of chromosomes within the nucleus of all our cells. Each chromosome contains hundreds to thousands of genes, which carry the instructions for making proteins.The human genome contains approximately 3 billion of these base pairs, which reside in the 23 pairs of chromosomes within the nucleus of all our cells. Each chromosome contains hundreds to thousands of genes, which carry the instructions for making proteins.
What is chromosome ?
A chromosome is a thread-like structure present in the nucleus of cells such as plant, animal and human cells and it is made of a molecule of DNA (Deoxyribonucleic acid) and histone proteins.
It is composed of three components, DNA, proteins and RNA, amount of the DNA content ranges from 30 to 40 %, the amount of proteins from 50 to 65%, and small amount of RNA from 1 to 10%.
Two types of protein present in DNA such as histone and non-histones proteins, histone constitute large amount (90% of total protein), whereas non-histone is present in small amount (around 10% of total protein).
The histone protein is basic, whereas, the DNA is acidic, so it can be neutralized; DNA in chromosome is present in two forms such as Euchromatin and Heterochromatin.
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Question 2 of 10
Which of the following is a product of fossil fuel combustion that contributes
to the greenhouse effect?
A. N2
B. O,
C. CO2
D. H2O2
SUBMIT
Which of the following is not a normal body response to heat?
Select one:
a. dilation of peripheral blood vessels
b. increased sweating
C. decreased rate of muscle activity
d. increased retention of blood in the core region
e. increased water loss
Answer:
c. decrease rate of muscle activity
* Apply Concepts A particular plants diploid number of chromosomes is 50. Describe the number of chromosomes in one of the plant's cells during its sporophyte phase and during its gametophyte phase,
Chromosomes have hereditary function that are capable of self-duplication and they have thread-like structures seen inside the nucleus of plant and animal. In plants, they go through a cycle called alteration of generation that has multicellular stages. One is sporophyte that is a diploid, and the other is gametophyte with a haploid.
Moreover, spores are produce through meiosis so it go through a process of chromosome reduction in order to create a haploid spores. While, gametes undergo mitosis and the structure is already a haploid, which means that the number of chromosomes will not change in order to produce haploid. In this case, the plant have both spores and gametes and the similarities is that, they are both singles celled and a haploid. Therefore, the number of the chromosome in the gametophyte generation is also 32.
Can small carbon compounds be formed into large carbon compounds?
Answer:
ya it can also be the largest compound but it needs alot if pressure
A man with AB blood is married to a woman with AB blood. What blood types will their children have
Answer:
A AB and B all three are possible
Increased carbon dioxide in the atmosphere leads to increased absorption of
Greenhouse Gases
Solar Radiation
Water Vapor
Volcanic ash
Answer:
Solar Radiation
Explanation:
Increased carbon dioxide in the atmosphere leads to increased absorption of Solar Radiation.
HELP MEEE PLS
This type of soil is found in warm, humid climates.
pedocal
laterite
pedalfer
humus
Answer:
laterite
Explanation:
Laterite soil is found in warm, humid climates. So, the correct option is B.
What do you mean by Climate?Climate may be defined as the description of the long-term pattern of weather in a particular area.
Laterite soil is found in the soil layer which is rich in iron oxide and derived from a wide variety of rocks weathering under strongly oxidizing and leaching conditions.
Therefore, Laterite soil is found in warm, humid climates.
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Need an answer before 1:59 tonight. Therefore, they could have existed on earth and fueled chemical evolution. In your own words describe this concept.
name and explain the emergent properties of water?
A plant is wilting in response to internal stimuli. What action can you take to make the plant stand tall?
F. Place a towel over the plant.
G. Put it in a pot with another plant.
H. Place it in a dark closet.
J. Provide water for the plant.
Answer:
It is either J or G my answer would be G
~Tori
Fungi are all eukaryotes that are not animals, plants or protists.
TRUE
FALSE
Check it
Answer:
true
Explanation:
this is it I think.:)
what is xylem and phloem in science?
Answer:
The xylem is one of the two types of tissue transported from the vascular plants, the other being the phloem.
Answer:
Xylem and phloem Plants have tissues to transport water, nutrients and minerals. Xylem transports water and mineral salts from the roots up to other parts of the plant, while phloem transports sucrose and amino acids between the leaves and other parts of the plant. Xylem and phloem in the center of the plant root
Explanation:
Hope this helps!!
Which best describes how biotechnology may affect energy consumption?
A.It may make us use our natural resource more quickly
B.It may help to increase our use of fossil fuels
C.it may help to increase the generation of alternative fuels
D.It may negatively impact our energy consumption,
Answer:
How many patients had allergies or ear infections, but not both?
24
27
36 answer
40
Explanation:
B
HELPPPPPPPPPPPPPPPPPPPP
Answer:
Grabbing a handful of mixed candy out of a bowl.
Explanation:
For all other options you are choosing specific items... such as a book from the library, or choosing items written on your grocery list, or choosing what to pack for lunch. Bycatch in fishing refers to catching extra fish, other than what you are selecting for. By grabbing a handful of mixed candy from a bowl you are not selecting for a specific 'fish'.
If a plant fall which way will the roots grow
Answer: The roots grow whichever way gravity will push them.
how many degrees in a triangle
Answer:
The internal degrees in a triangle add up to 180
Explanation:
Answer:
Three are three angles in a triangle which all add up to exactly 180 degrees
Explanation:
How much energy will the cheetah get if it eats the gazelle?
Answer:
alot
Explanation:
Question 11 of 20 What fact do scientists believe provides evidence for the Big Bang Theory? A. All stars feature nuclear fusion in their core. B. Most extra-solar planets are gas giants C. All comets follow elliptical orbits. D. All distant galaxies are moving away from us.
If an animal has 21 chromosomes before replication, how many do they have after?
Answer:
Animals usually have 22 pairs of homolog chromosomes (autosomes) and as sex chromosomes 2 x chromosomes (in female), or 1 x and 1 y chromosome (in males), thus in total 46 chromosomes per body cell (see human karyogram; 2n = 46) and 92 chromatids per cell after replication.
Explanation:
42
Match the term to its description.
Match Term Definition
Elliptical galaxy A) Has a central core from which curved arms spiral
outward
Irregular galaxy B) Has a large flattened core
Lens galaxy C) Forms a perfect sphere or an ellipse and is
flattened to some degree
Spiral galaxy D) Does not have a distinct regular shape
Answer:
Hello!
Explanation:
☁️Match the term to its description.⠀⠀⠀⠀⠀Match Term Definition
--------------------------------------------------------------------------------------------------------------------------
Elliptical galaxy A) Has a central core from which curved arms spiral outwardIrregular galaxy B) Has a large flattened coreLens galaxy C) Forms a perfect sphere or an ellipse and is flattened to some degreeSpiral galaxy D) Does not have a distinct regular shape--------------------------------------------------------------------------------------------------------------------------
correction
⭐Elliptical galaxy A) It forms a perfect sphere or an ellipse and is
flattened to a certain extent
⭐Irregular galaxy B) Does not have a distinctive regular shape
⭐Galaxy lens C) Has a large flattened core
⭐Spiral galaxy D) It has a central nucleus from which curved-armed spirals
Exterior
I hope I've helped :D
regards
atte:
Ángela
❤️
Answer:
yup
Explanation:
he's wrong
I did it and I got the question wrong.
all of it
11. The following graph shows the results of an experiment done by four different
groups. Each group took a rubber band and recorded how far it stretched as
they added weights to it. What is the independent (test) variable in this
experiment?
Group 1
Group 2
Group 3 Group 4
stretch
weight
I
A) The distance the rubber band stretched
B) The number of weights added to the rubber band
C) The different types of rubber bands
D) The same type of rubber bands
Given the following sequence of DNA, write the correct sequence of complementary DNA bases.
TACCGATAA
Given the following sequence of DNA, write the correct sequence of complementary mRNA.
ACCGTACTG
Given the following sequence of DNA write the correct sequence of amino acids.
ATAGGCGTA
Answer:
1. ATGGCTATT
2. UGGCAUGAC
3. mRNA: UAU-CCG-CAU, amino acids: tyrosine(tyr)-proline(pro)-histidine(his)
Explanation:
For DNA, the complementary bases are T=A and C=G. This means every time you see one of these letters, the corresponding letter goes with it. For mRNA, the bases are T=A, A=U, C=G. It is the same except now, there should be no "T" in the mRNA sequence. With amino acids, you would first code for the mRNA sequence, every three letters being the amino acid sequence. To find the amino acid, you would look at a codon chart unless your teacher wants you to memorize them. The first three letters of the amino acid are the abbreviation.
What are sedimentary rocks ?? USE IN YOUR OWN WORDS.
40 POINTS DONT SKIP !
Answer:
Rock that has formed through the deposition and solidification of sediment
Explanation:
What is a basic function of a cell
Answer:
The answer is below
Explanation:
They provide structure and support, facilitate growth through mitosis, allow passive and active transport, produce energy, create metabolic reactions and aid in reproduction.
Hope this helps:)
what are the limitations of cell theory
Answer:
The shortcomings or drawbacks of cell theory are: Viruses are considered as acellular entities or organisms that do not have cell machinery, yet they are taken into account as organisms in this cell theory. Matthias Schleiden and Theodor Schwann did not know the mechanism of the cell.
Explanation:
NEED HELP ASAP
Which of the following increase the speed of action potentials in the nervous system?
Answer:
Where are the answers to choose from?
In any case, the ranvier nodes and myelin increase the speed
d) During Transcription, a nucleotide has been deleted. Explain the effect this will have
on DNA as well as what happens in each step along the way to a protein.
Answer:
this mutation may change the open reading frame of the resulting RNA sequence and its final product, which is a protein in the case that this gene is used to synthesize a messenger RNA (mRNA) sequence
Explanation:
During the transcription, a region of DNA named 'gene' is used as template to produce an RNA molecule, typically a primary transcript of mRNA (pre-mRNA). Subsequently, this pre-mRNA suffers a process named RNA processing in order to generate a mature mRNA which is finally used to create a protein by a process called translation. If a deletion occurs during transcription, it may change the open reading frame (ORF) of the resulting mRNA when the mutation occurs in an exon of the protein-coding gene (i.e., occurs a frameshift mutation), while this deletion may not have any effect if it is localized within the introns which are removed during RNA processing. A frameshift mutation will change the amino acids that are added to the nascent polypeptide chain during translation.
g Classify the statements as describing deoxyribonucleic acid (DNA) or ribonucleic acid (RNA). DNA RNA is a single molecule that can be over 10,000,000 nucleotides long is usually double stranded includes the base thymine can be translated into a protein is the genome for prokaryotic organisms is usually single stranded includes ribose sugar is a single molecule that can form a complex secondary structure
Answer:
DNA:
- is a single molecule that can be over 10,000,000 nucleotides long
- is usually double stranded
- includes the base thymine
- is the genome for prokaryotic organisms
RNA:
- can be translated into a protein
- is usually single stranded
- includes ribose sugar
- is a single molecule that can form a complex secondary structure
Explanation:
Deoxyribonucleic acid (DNA) is the hereditary genetic material of both prokaryotic and eukaryotic organisms, while RNA is the genetic material of many viruses. DNA is a double helix molecule composed of four types of nucleotides: a nitrogenous base (Adenine, Thymine, Cytosine and Guanine), a five-carbon sugar (i.e., deoxyribose), and a phosphate group. On the other hand, RNA is usually a single-stranded molecule whose nucleotides contain ribose sugars and Uracil bases replace Thymine bases. During translation, a type of RNA molecule referred to as messenger RNA (mRNA) is used as template to direct the synthesis of a polypeptide chain (protein). This RNA molecule can fold to form stable double-stranded RNA hairpins (i.e., secondary structures).
Plz help/will give brainlest!