Answer:
I believe the answer is D
Histone proteins are among the most highly conserved protein in eukaryotes. Histone H4 proteins from a pea and a cow, for example, differ in only 2 of 102 amino acids. However, comparison of the two gene (nucleotide) sequences shows many more differences. These observations indicate that mutations that change amino acids must be selected against.
Required:
Why do you suppose that amino acid-altering mutations in histone genes are deleterious?
Answer:
nucleosomal histones (H2A, H2B, H3 and H4) strongly interact among them and with DNA in order to form nucleosomes. In consequence, it is expected that mutations in histone genes have deleterious effects on the organization of the chromatin
Explanation:
Nucleosomes are well known to be the basic structural units of DNA packaging in eukaryotic cells. Each nucleosome consists of an octamer of histone proteins, i.e., two copies each of the histones H2A, H2B, H3, and H4, and one segment of DNA wrapped around this octamer of histones. Chromatin organization is fundamental o regulate key cellular processes, including gene expression and genome maintenance. In consequence, it is expected that histone proteins are evolutionary well conserved across the eukaryotic kingdom.
Plants are known as producers because they can make their own food. Which of the following provides a list of basic needs a plant must have for photosynthesis to happen?
A.
water and oxygen in the air
B.
soil, energy from the sun, and oxygen in the air
C.
energy from the sun, carbon dioxide in the air, water
D.
soil, carbon dioxide in the air, energy from the sun
How do restriction enzymes work?
Explanation:
Like all enzymes, a restriction enzyme works by shape-to-shape matching. When it comes into contact with a DNA sequence with a shape that matches a part of the enzyme, called the recognition site, it wraps around the DNA and causes a break in both strands of the DNA molecule.
Which kingdoms contain organisms that are multicellular?
Eubacteria
Animalia
Archaebacteria
Plantae
Answer:
B and D
Animalia and Plantae
Explanation:
got it right in edg (see pic)
hope this helps :)
The kingdom that contain organisms that are multicellular are Animaliia and plantae
What are multicellular organisms?Multicellular organisms refers to organisms that gave more than one cells and have nucleus.
These organisms cells bond together to form tissues.
Multiple tissues join together to form organs and organs come together to form system.
Therefore, The kingdom that contain organisms that are multicellular are Animalia and plantae
Learn more about multicellular organisms below.
https://brainly.com/question/2515155
#SPJ5
The Aleutian Island Arc is a distinguishing feature of the state of Alaska. Which
geologic features would you expect to find at this boundary?
O A. mid-ocean ridges and volcanic mountains
O B. trenches and volcanic mountains
O C. rift valleys and folded mountains
OD. faults and folded mountains
Answer:mid ocean ridges and volcanic mountains
Explanation: it’s in the water
What features are found both on Mars and Earth?
Answer:
As for the similarities, Earth and Mars' both have terrains that varies considerably from place to place. On Earth, both above and below sea level, there are mountainous features, volcanoes, scarps (trenches), canyons, plateaus, and abyssal plains
Explanation:
The features are found both on Mars and Earth as for the similarities, Earth and Mars' both have terrains that varies considerably from place to place. On Earth, both above and below sea level, there are mountainous features, volcanoes, scarps (trenches), canyons, plateaus, and abyssal plains.
What are volcanoes?A volcano has a hill or mountain or it has an opening in a planet or moon's crust from which molten rock, warm gases, and materials erupt. It has a landform where molten rocks erupt through the surface of the planet and volcano moutains open downwards to molten rocks.
According to Geologists there's are four types of the volcanoes and these are lava domes, shield volcanoes, composite volcanoes, and cinder cones.
The main reason behind the formation of volcanoes are movement of tectonic plates it means when one tectonic plate moves under another tectonic plate volcano has formed.
Therefore, The surface of the moon to look the way it does because on Earth point of view, then it is sunlight reflecting off of its surface. If you mean on the moon point of view, then it is because the moon has impact craters and dead volcanoes all over it.
Learn more about volcanoes on:
https://brainly.com/question/264008
#SPJ6
The factors that contribute to Mercury's daily temperature fluctuation of about 600°C
are the planet's slow rotation and
A. its close proximity to the sun.
B. its dense atmosphere.
C. its heavy, rocky, water-less terrain
D. the absence of a thick atmospheric layer to regulate temperature.
Answer:
D. the absence of a thick atmospheric layer to regulate temperature.
Explanation:
Mercury is the smallest and closest planet to the Sun. On its surface, Mercury's temperatures are extreme, reaching up to 600 ºC in the daytime and dropping to around -180 °C in the nighttime. This huge variation in Mercury's surface temperatures is due to the fact that this planet doesn't have an atmosphere to retain the heat at the night. Therefore, the heat during sunlight hours cannot be distributed on the surface of this planet, and temperatures at the poles can be hundreds of degrees below zero.
deforestation ____ forest ecosystems
helps or disrupts?
Answer:
Disrupts
Explanation:
Where does photosynthesis occur in the biosphere? Check all that apply. Sun wa in the Sun in producers in consumers Producers Where does the cellular respiration occur in the biosphere? Check all that apply. in the Sun in producers TR in consumers Consumers DONE
Answer:
in producers & in comsumers
Explanation:
The reason this is the answer is because photosynthesis happens in producers then consumers eat the producers that photosynthesized
Answer:
1-in producers
2-in producers and in consumers
Explanation:
i did the test
Guys I need help ASAP
Answer:
D.
Explanation:
When two organisms are in a mutualistic relationship, they benefit each other in a way that both rely on each other for survival in a particular environment. The elimination of one of them might have a negative effect on the survival of the other.
So also, the development of new resorts in the area which leads to the detsruction of the Hawaiian silverswords will therefore have a negative effect on the population of the honeycreeper. The population of the Honeycreeper will decrease because they rely on the silverswords for survival.
Define the following terms:. Attraction
Which of the following is the correct definition of an inherited behavior?
A a behavior that is known to be found in your genetic information
B a trait that is learned through studying and practicing
C an action that is learned through years of training
D a behavior that is not passed between generations
Answer:
A. a behavior that is known to be found in your genetic information
Explanation:
If a trait is inherited then it cannot be learned. You have to be born with it like your genetic info
The Answer is- A) codominance
Answer:
Okkkkkkk
Explanation:
Don't see why your asking a question even though your not asking a question because you're just giving an answer but doing it as a question
Answer:
A codominance
Explanation:
Which of the following sentences correctly describes the effect of an invasive species on an area?
1.Invasive species have naturally evolved to be top predators in an ecological area. 2.These species do not have a major effect on an ecosystem.
3 .However, they may decrease the population of local species.
4. This decrease causes a drop in local fishing yields.
5. Because of their exotic nature, invasive species boost local tourism.
Answer:
They may decrease the population of local fish
Explanation:
If a fresh cucumber slice is placed in very salty water, which direction will the water move, into the cells of the cucumber or out of the cucumber?
If we sprinkle salt on cucumber slices, it releases water after some time due to the process of osmosis. Osmosis is a process where solute or salt from higher concentration moves towards lower concentration through a semi-permeable membrane. Here, in this case, the salt concentration is more outside on the cucumber slices. The individual cell membrane of cells present in cucumber slices acts as a semi-permeable membrane. Inside the cucumber cells, there is less concentration of salt or solute and more concentration of water. Therefore, the salt from outside goes inside individual cells and the water comes out as it also travels from higher concentration to outside lower concentration through a semi-permeable membrane.
Metagenomics (check all that apply): Group of answer choices Can leverage Next Generation Sequencing technology to identify and characterize organisms. Rarely finds previously unknown microorganisms. Has resources to support analysis at the DOE-JGI site. Can identify microbiologic organisms without traditional isolation and culturing of individual organisms.
Answer:
- Can leverage Next Generation Sequencing technology to identify and characterize organisms
- Has resources to support analysis at the DOE-JGI site.
- Can identify microbiologic organisms without traditional isolation and culturing of individual organisms.
Explanation:
Metagenomics can be defined as the study of whole genomes of biological communities recovered from environmental samples. This genomic field has enabled the discovery of new species (microorganisms) and their effects on the environment. Next-Generation Sequencing (NGS) technologies allow to obtain huge amounts of genomic data, which has been a limitation in genomics and metagenomics. Metagenomic NGS (mNGS) is a technique used for sequencing nucleic acids present in a biological sample containing mixed populations of microorganisms. Finally, the Department of Energy Joint Genome Institute (DOE JGI) is a referent in metagenomic analysis, especially in genome assembly data obtained from microbial communities. This Science User Facility has developed a series of bioinformatics tools and databases in order to analyze metagenomic information.
What color of visible light has the least percentage of absorption by chlorophyll A?
which action is not an example of someone maintaining homeostasis
Answer:
Someone bleeding from a cut is not an example of someone maintaining homeostasis. It is simply blood flowing out of your body through a small cut.
Explanation:
You decided to splurge after eating a large dinner by consuming 2 Krispy Kreme donuts. The sugar in your cells is already high from the dinner you ate earlier, but your cells still need to take in the sugar from your blood which is lower. The receptors on your body cells get a message to open a channel in the membrane and allow the sugar into the cell. In which direction will the water move with respect to the cell: either inside the body cell or outside the body cell. EXPLAIN why ENERGY is required for this type of transport, and WHY a protein receptor on the membrane is needed.
Answer:
ive never had krispy kreme donuts or starbucks
Explanation:
True or False: All systems interact to ensure the body maintains homeostasis.
What do scientists think will happen as greenhouse gases emissions increase
A. The temperature of the earth will decrease
B. The temperature of the earth will increase
C. Temperature temperature of the earth will stay the same
D. Temperature does not impact the earth
What do you call the reproductive cells involved in higher animals? How do you
describe these cells?
Answer: Gametes are an organism's reproductive cells, also referred to as sex cells.In species that produce two morphologically distinct types of gametes, and in which each individual produces only one type, a female is any individual that produces the larger type of gamete—called an ovum— and a male produces the smaller
Explanation:
The greatest amount of diversity can be found among which type of organism?
Answer:
insects first then animals
Explanation:
ANIMALS
Using the Punnett Square for the Rr x Rr cross, what percentage of the offspring are going to be heterozygous?
100%
50%
0%
75%
Answer:
50%
Explanation:
The punnet square gives you a 25 percent probability of RR, a 50 percent probability for Rr, and a 25 percent probability for rr. Rr is the only option heterozygous
Using the Punnett Square for the Rr x Rr cross, 50% of the offspring are going to be heterozygous. Thus, the correct option is Option B.
What is a Punnett Square?The Punnett square is a square diagram used to predict genotypes of a specific cross or breeding experiment. It is named after Reginald C. Punnett, who invented it in 1905. Biologists use the diagram to calculate the likelihood of an offspring having a specific genotype.
The Punnett square is a table that lists all possible combinations of maternal and paternal alleles. These tables can be used to investigate the genotypical outcomes of offspring of a single trait (allele) or when crossing multiple traits from the parents. The Punnett square represents Mendelian inheritance visually.
Therefore, 50% of the of the offspring are going to be heterozygous or the Rr x Rr cross, using the Punnett Square.
To learn more about Punnett Square, click here:
https://brainly.com/question/16076571
#SPJ6
A molecule that organism get from the air or water around them and use to release energy
The "backbone" or "side rails" of the DNA molecule is made of the ___
Answer:
Two Components
Explanation:
hope that helps
Which cell layer differentiates and forms the body’s internal structures such as bones and muscles
Answer:
ectoderm
Explanation:
The cell layer that differentiates and forms the body’s internal structures, such as bones and muscles, is mesoderm, which is present in Option A, as during embryonic development, the mesoderm layer forms from the middle layer.
What is mesoderm?During embryonic development, fertilized egg goes through a series of processes that result in the formation of an organism, followed by the formation of the three primary germ layers, which are the ectoderm, mesoderm, and endoderm, from which various tissues and organs in the body are formed, such as the mesoderm, that is the middle layer where muscle, bone, cartilage, and blood are formed.
Hence, the cell layer that differentiates and forms the body’s internal structures, such as bones and muscles, is mesoderm, which is present in Option A.
Learn more about the mesoderm here.
https://brainly.com/question/9569336
#SPJ6
The question is incomplete, complete question is below
Which cell layer differentiates and forms the body’s internal structures such as bones and muscles
A)mesoderm
B)ectoderm
C)endoderm
MATCHING - BACTERIAL NUTRITION
Autotrophic Heterotrophic
19 "Self-feeder"
Parasitic
Saprophytic
20
"Nourishment by others"
21
Live on dead organic material
Saprophytic
22
Nourishment from living host
23
Transforms inorganic materials into
organic materials (carbohydrates)
Answer:
Oki give me a sec I'll tell u
Many parasitic protozoans can live within the body fluids of other organisms.
True
False
Answer: true
Explanation: Parasitic and symbiotic protozoa live on or within other organisms, including vertebrates and invertebrates , as well as plants and other single-celled organisms
What modern method of study can trace the evolutionary relatedness of organisms by comparing the nucleotide sequences on DNA?
Answer: comparative genomics
Explanation: