Genetic information is carried in chloroplasts and mitochondria in the following way:
Chloroplasts have their own ribosomes, the structures where proteins are made from genetic information; and their own DNA.The set of genes of an organism (or organelle) contained and organized in chromosomes is called the genome.The genome of chloroplasts is known as plastome, the genes found in plastomes code for proteins of the photosynthetic machinery; transcription, translation and replication of their own DNA and regulation of proteins with the nucleus.These genes are usually grouped in small niches whose organization has been maintained throughout evolution.Plant mitochondria, like chloroplasts, have a circular genome that generally obeys the number of molecules present in a mitochondrion, as well as the size depends on the species.MtDNA is a circular double helix molecule, each mitochondria contains between tens and hundreds of molecules of this DNA.The mtDNA has more non-coding sequences, with more genes and with different organization (exons and introns) in them.The mitochondrial translation system is unique to them and ribosomal and transfer RNAs are encoded by mtDNA, and the genetic code used for translation is different from the universal one.Therefore, we can conclude that chloroplasts and mitochondria are autonomous cellular organelles, both possess DNA that is capable of replicating, transcribing and translating independently of the nuclear one.
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Can someone help me please?
Answer:
C
Explanation:
What are proteins made of.
Answer: amino acids
Explanation:
1) A DNA segment, composed of 120 nucleotides, code for a protein molecule. What term accurately identifies that segment?
A) centromere
B) chromosome
C) gene
D) nucleotide
2) The analysis of a DNA molecule reveals that 30% of its nucleotides are adenine. What percentage of the DNA molecule would be expected to be guanine nucleotides?
A) 20%
B)30%
C)40%
D)60%
A DNA segment, composed of 120 nucleotides, code for a protein molecule is a gene.
A DNA molecule that 30% of its nucleotides are adenine contains 30% guanine nucleotides.
What is a gene?A gene is a region of DNA which contain information for the synthesis of a protein or any other product.
A DNA segment, composed of 120 nucleotides, code for a protein molecule is a gene.
In a DNA molecule, the ratio of adenine nucleotides is equal the ratio of guanime nucleotides due to base pairing.
A DNA molecule that 30% of its nucleotides are adenine contains 30% guanine nucleotides.
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Plant anatomy and physiology notes ( I have to more questions )
The products of the process of cellular respiration are
a. oxygen and glucose
b. carbon dioxide and oxygen
c. carbon dioxide, water and energy
d. glucose, water and energy
The answer should be A from my knowledge.
What role in the survival of the plant does the root of the beet plant likely have? A. it stores energy. B. it absorbs sunlight. C. it protects the seeds. D. it is involved in photosynthesis.
Answer:
A
Explanation:
It stores energy
Answer:
A
Explanation:
It stores energy
Does anybody have a presentation about Mendel's second law. Please I need it to do well.
Answer:
See the answer below
Explanation:
Mendel's second law of genetics is also known as the law of independent assortment of genes.
In this law, Mendel opined that genes are independently inherited. In other words, Mendel said that the factors that dictate the physical attributes of living organisms are inherited independently.
This means, for example, that the color of your eyes is independently inherited from the color of your skin, your skin color is independent of your hair color, etc.
Mendel was able to prove this law by performing a dihybrid cross using the pea plant.
A true-breeding plant that is dominant for round and yellow traits (RRYY) was crossed with another true-breeding plant that is recessive for wrinkled and green traits (rryy).
All the F1 offspring were round with yellow color and the cross was advanced to F2. The F2 plants segregated in the ratio of 3:1 for the round trait to wrinkled traits and also 3:1 for the yellow to green traits respectively.
The outcome was the same as carrying out a monohybrid cross for each trait independently. Hence, Mendel concluded that traits are inherited independently of each other.
humans that is controlled by a single gene. How many recessive alleles must a person have to have no dimples? A. 0 B. 3 C. 1 D. 2
Answer:
IT's 2 just did it on A-P-E-X
Explanation:
A-P-E-x
Which of the following best describes stratus clouds?
stretched out and low
fluffy and low
wispy and high
flat, fluffy, and develop vertically
Answer:
im pretty sure it is b. fluffy and low OwO
Explanation:
Stratus clouds are low-level clouds characterized by horizontal layering with a uniform base, as opposed to convective or cumuliform clouds that are formed by rising thermals.
An organ is a?
#1. Group of organs that work together.
#2. Group of similar cells that perform a particular function.
#3. Cell that has a specific function inside the body.
Answer:
#2
Explanation:
Group of similar cells that perform a particular function.
Which structure pumps out excess water and wastes?
Answer:
The contractile vacuole pumps out excess water and wastes.
Cells have a particular organelle that pumps out excess water and other wastes from the cell. Contractile vacuole serves this purpose.
The protozoan cell contains an organelle or subcellular structure called the Contractile Vacuole. It is a spherical, transparent, translucent, pulsating single-cell organelle. Previously, it was referred to as a pulsatile or pulsating vacuole. It is encased in a unit membrane, floats in the cytoplasm, and is filled with watery fluid. It is a vacuole that constricts and expels water from the cell, as its name suggests. It frequently stretches and shrinks. While water is expelled from the contractile vacuole as it expands, the contractile vacuole contracts, causing water to collect inside the organelle. The contractile vacuole is the protozoan unicellular organism's kidney. It shows the rhythmic systolic and diastolic movements.
Therefore, Contractile vacuole pumps out excess water & wastes.
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In guinea pigs, the allele for short hair is dominant.
What genotype would a heterozygous short-haired guinea pig have? _______
What genotype would a pure breeding (HOMO) short-haired guinea pig have? _______
What genotype would a long-haired guinea pig have? ________
First blank: Aa
2nd: AA
3rd: aa
The genotype would be a heterozygous short-haired guinea pig having Aa. The genotype would be a pure breeding (HOMO) short-haired guinea pig have AA. The genotype would be a long-haired guinea pig have aa.
What are guinea pigs?Guinea pigs played – and continue to play – an important role in Peruvian medicine and religion. Some believe that guinea pigs can be used to diagnose illnesses (black guinea pigs supposedly have a special aptitude for this).
Guinea pigs also had a religious significance. Some civilisations, such as the Moche (around 100 CE to 800 CE in northern Peru), worshipped them and often incorporated them into their artworks or put up statues to them.
Therefore, The genotype would be a heterozygous short-haired guinea pig having Aa. The genotype would be a pure breeding (HOMO) short-haired guinea pig have AA. The genotype would be a long-haired guinea pig have aa.
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I REALLY REALLY NEED HELP OR I MIGHT FAIL PLSSSS HELP PSLSSLSLSLSL and tysmsmsmsmss s :_>
Answer: D All three toy boats experinced the same strengh
force because they changed speed by the same amount
Explanation:
I picked D because all of the three boats either decreased by five or increased by five.
Answer:
D
Explanation:
Identify the statement below that is NOT a principle of evolution.
O Populations evolve, individuals do not
O Negative adaptations will become more common in a population
O Variations occur naturally within a population
O Adaptations help individuals compete successfully for survival
B) negative adaptations will become more common in a population
negative adaptations will become more common in a population.
What is Evolution?According to the idea of evolution in biology, the many species of plants, animals, and other living things on Earth descended from earlier species, and their recognizable differences are the result of changes made by subsequent generations.
More than 2 million species of organisms already in existence have been recognized and documented; many more are still undiscovered, with estimates ranging from 10 million to 30 million.
The amazing variability in size, form, and mode of existence, from tiny bacteria with a diameter of less than a millionth of a millimeter to majestic sequoias with a height of 100 meters, is as astonishing as the figures.
Therefore, negative adaptations will become more common in a population.
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Please help!! I need help with this fast! It’s only 2 questions to answer here!
Answer:
1. B. parasitism
2. C. parasitism, predation, mutualism
Explanation:
What is the male portion of a zygote referred to.
1. sperm cell
2. egg cell
Answer:
egg cell is the correct answer
A carrier of an autosomal gene can be?
A.female
B.male
C.both male and female
2. How can dominance and expression of alleles explain the differences between these fraternal twins?
Answer:
Fraternal twins are from two seperate eggs.
Explanation:
The first part of the question is missing but any difference between fraternal twins can be explained by the fact that two seperate eggs are fertilized during the pregnancy so they have different genomes which leads to having different dominance of different genes and this leads to different expressions of this genes.
I hope this answer helps.
What is the function of mitochondria in muscle fibers?
Answer:
During strenuous exercise, the rate of energy use in skeletal muscles can increase by more than 100-fold almost instantly. To meet this energy demand, muscle cells contain mitochondria. These organelles, commonly referred to as the cell's “power plants,” convert nutrients into the molecule ATP, which stores energy.
What questions do you have about how the heating systems work?
Signals from the ___ system cause contractions in skeletal muscles. A. Respiratory B. Endocrine. C. Nervous. D. Digestive
List three factors that will affect the future of the biosphere?
1. A worker uses a board that is 4 m long to pry up a boulder. A small rock is used for a
fulcrum and is placed 0.5 m from the resistance end of the lever. Calculate the MA of the
I
board.
Answer:
7
Explanation:
Mechanical advantage is given by the ratio of the distance of the fulcrum from the two objects of the system.
Here the boulder is [tex]0.5\ \text{m}[/tex] from the fulcrum and the mass at the other end of the lever is [tex]4-0.5=3.5\ \text{m}[/tex] from the fulcrum.
So, mechanical advantage is given by
[tex]MA=\dfrac{3.5}{0.5}\\\Rightarrow MA=7[/tex]
So, mechanical advantage of the board is 7.
Hello help
What is passed on the the offspring (kids) of the antibiotic resistant bacteria?
bacteria gene
gene for resistance
The amount of kinetic energy an object has depends on which feature of the object?
O its motion
O its position
its gravity
O its height
Answer:
A. Motion......
The amount of kinetic energy an object has depends on its motion.
WHAT IS KINETIC ENERGY?Kinetic energy is the energy of an object that is due to its motion.
The kinetic energy of an object is denoted by the following expression:
K.E = ½ × mass × velocity.Therefore, this shows that amount of kinetic energy an object has depends on the motion of the object.
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Which term describes the picture?
impermeable:
doesn't allow any
molecules to pass
through
permeable: allows
all molecules to
pass through
selectively
permeable: allows
only certain
molecules to pass
through
all are correct
A parent cell that has 4 chromosomes will produce two daughter cells by mitosis, each with how many
chromosomes?
Answer: They will each have 4 chromosomes.
Explanation:
They will each have the same number of chromosomes (4) as you cannot gain or lose chromosomes unless there is a genetic mutation that has occured.
neeeeeeeeeeeeeeeeeeeed help
Answer:
i cant see the picture
Explanation:
Answer:
D
Explanation:
why does the detergent and protease enzymes are needed in order to collect pure samples of dna
Answer:
Explanation:
Detergent enzyme used because The positively charged sodium ions in the salt help protect the negatively charged phosphate groups that run along the backbone of the DNA. A detergent is then added. The detergent breaks down the lipids in the cell membrane and nuclei. DNA is released as these membranes are disrupted.
Proteases catalyze the breakdown of contaminating proteins present in the solution to its component amino acids. It also degrades any nucleases and/or enzymes that may be present in the sample. This is of vital importance since these chemical compounds can attack and destroy the nucleic acids in your sample.
WILL MARK BRAINLIEST!! HELP ME PLS I DON'T GET THIS
What is the genotype and phenotype ratio for this cross?
Answer:
Genotype ratio Tt:tt=1:1
Phenotype ratio 1:1
Explanation:
the phenotype ratio should be 1:1 since there are 2 individuals with the dominant allele and 2 without it
The genotype ratio should be 1:1 for the same reason