Which of the following is true of genetic drift?
It can decrease genetic diversity in a population.
It plays a much larger role in determining the genetic makeup of populations than
natural selection.
It is necessary in order for a population to be in Hardy-Weinberg equilibrium.
It can increase genetic diversity in a population.
The statement which is true about Genetic drift is that it can decrease genetic diversity in a population. Thus, the correct option for this question is A.
What is Genetic drift?Genetic drift may be defined as a type of evolutionary force that significantly involves the mechanism of evolution in which the allele frequency of a population may change over generations due to chance or sampling error.
The process of genetic drift occurs in all populations of non-finite size but its effects are strongest in the smallest populations. It is considered an assumption under the Hardy-Weinberg equilibrium. So, option C is eliminated.
The concept of the founder effect and genetic bottleneck always decreases the genetic diversity among the population. So, option D is eliminated.
Therefore, it can decrease genetic diversity in a population is that statement that is true about Genetic drift. Thus, the correct option for this question is A.
To learn more about Genetic drift, refer to the link:
https://brainly.com/question/1027688
#SPJ2
In Mendel's experiments, a trait that disappeared in the F1 generation but reappeared in the F2 generation was always a
Answer: A trait that disappeared in the F1 generation but reappeared in the F2 generation was always a RECESSIVE TRAIT.
Explanation:
The basic laws of genetics were laid down by an Australian monk in 1866, Gregor Mendel. From the results of his experiment, Mendel came to certain conclusions which are referred to as the Mendel's Laws of Heredity one of which includes the Law of Segregation of genes.
The Law of Segregation states that:
--> the hereditary characters of an organism are determined by genes
--> a gene for a character may have alternative forms ( alleles) which express the character in different ways;
--> if a diploid organism has two different alleles ( heterozygous) for a character, one allele may be dominant, dictating the expression of the character to the complete exclusion of the other ( the recessive allele).
Furthermore, Mendel's experiments can be proven by the study of a single- factor inheritance pattern. This is achieved by crossing a pure stock of white- flowered pea plants and red - flowered ones. The offspring of this cross are all red flowered pea plants. They form the F1 GENERATION.
Since only red flower colour is seen in the F1 generation, we say the the red flower form of the character is dominant. White colour, which does not show up in the F1 generation, but reappear in F2 GENERATION when F1 GENERATION is crossed, is said to be the recessive form of the character.
Therefore, this implies that the recessive traits can skip a generation to appear in future generations according to Mendel's experiments.
Answer: Yea it was Recessive.
Explanation: I got it correct on the test
If a motor unit is stimulated to contract in order to generate movement and no movement happens, which muscular concept indicated the addition of more motor units to increase tension
How did the frameshift change the amino acids?
Please it’s due today
Answer:
Explanation:
Answer: A frameshift mutation will in general cause the reading of the codons after the mutation to code for different Aminoacids.
Explanation: The frameshift mutation will also alter the forst stop codon ("UAA", "UGA" or "UAG") encountered in the sequence.
in recent years much of califorinia has had drought conditions much of our food comes from califorinia and there are many growing cities in that state what do you think has happened to the ground water supply as droughts have occured there explain how a diversion system could be useful califorinia including the parts of such a system
Answer:
The level of ground water decreases.
Explanation:
Due to drought condition, the level of ground water decreases because of pumping of water for the irrigation purpose. Huge amount of water is required to irrigate a large area of California and in the drought conditions ground water is the only solution for this problem. The diversion system will be useful California by diverging river into these drought affected areas in order to fulfill the need of water for growing crops so we can conclude that this diversion system helps to fulfill the necessity of water during drought situation.
what is the difference between plant cell and animal cell
Answer:
Major structural differences between a plant and an animal cell include: Plant cells have a cell wall, but animal cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not.
Explanation:
Hope that helps :)
Answer:
A plant cell contains a singular vacuole In contrast, animal cells have many smaller vacuoles.
Explanation:
Plant cells have a cell wall, as well as a cell membrane. Animal cells have a cell membrane, but no cell wall.
How did stromatolites contribute oxygen to the early atmosphere?
by weathering of rocks
through photolysis
through methane degradation
through photosynthesis
How did stromatolites contribute oxygen to the early atmosphere?
by weathering of rocks
through photolysis
through methane degradation
through photosynthesis
Answer:
by weathering of rocks
pls rate 5star + thanks
Stromatolites contributed oxygen to the early atmosphere through photosynthesis.
What are stromatolites ?Stromatolites are layered sedimentary formations that are created mainly by photosynthetic microorganisms such as cyanobacteria, sulfate-reducing bacteria, etc. that lives today in a wide range of environments ranging from the shallow shelf to lakes, rivers, and even soils.
Cyanobacteria were ultimately responsible for one of the most important global changes that the Earth has undergone. Being photosynthetic, cyanobacteria produce oxygen as a by-product.
To know more about stromatolites here
https://brainly.com/question/11623402
#SPJ2
These are the three main organs that make up the plant body.
What is the main function of the structure that is identified as A in the picture above?
It anchors the plant
It produces food
It absorbs nutrients
It supports the plant
Answer:
B. Produces food.
Explanation:
hope this helped ^^
FILL IN THE BLANK
Use the word bank on the right to fill in the blanks n the paragraph below. Click on
each word and drag it to the correct spot in the paragraph
orbit
Pulled by the sun's gravity, the Earth makes one
complete
revolution
around the sun every 365 days.
As the Earth revolves the sun, it
or spins
eclipse
on its axis. The path that Earth takes as it revolves
rotates
around the sun is called its
The
gravitational pull between Earth and
moon
causes fides. At times, a
occurs when
the Earth or moon passes into the other's shadow.
The Off Duty Teacher
Answer:
Rotates, Orbits, Moon, Eclips
Explanation:
Hope this helped
║∦⇔are scientists capable to fix Mars atmosphere???⇔∦║
Answer:
maybe
Explanation:
it's possible, but we'd need to develop WAY better technology
You place equal amounts of pure water and apple juice into separate ice trays and place them in the freezer. Which tray will freeze first and why? *
What are the legal responsibilities of a veterinarian regarding the identification and documentation of animals?
Answer:
The answer is below
Explanation:
The legal responsibilities of a veterinarian regarding the identification and documentation of animals are the following:
1. The veterinarian must safeguard the personal privacy of clients or pet owners, and the pets.
2. The identification of the pet must be kept from the public except required by the law or essential for the protection of other animals and individuals' health.
3. The information about the pet and the pet owners must be confidential
What is the longest food chain in ( hawk, snake, mouse, meadow lark, grasshopper, grass）?
snake
Explanation:
i think snake is the answer..good luck
Which statement is true? Please help me
Answer:
B
Explanation:
E is a fault line because because it does not pass the real tunnel
What are the rarest bacteria?
Answer:
Candida auris. ...Pseudomonas aeruginosa.Neisseria gonorrhea.Salmonellae. Acinetobacter baumannii.Drug resistant tuberculosisPlease can someone help me please
Answer:
layered cake
Explanation:
Answer:
The correct answer is A layered cake
Answer:
A
20 POINTS!!!!!!!!!!!!!!
Answer:
Its a substitution mutation because one of the specific base, G is replaced by A.
This is a Point Mutation because Point mutation brings changes in the structure of a gene because of the substitutions with another base pair. Like in this case, G is substituted by A. In case of frameshift mutations, there is a change in the number of nucleotides due to either insertions or deletions of the nucleotides, which is not in this case.
Answer:
Its a substitution mutation because one of the specific base, G is replaced by A.
Explanation:
How do the plants depend on the animals for their survival give three examples
PLEASE HELP!!!!!!!!!!
Answer:
Plants provide animals with habitat and produce oxygen, which the animals use to survive. Animals decompose and become natural fertilizer plants until they pass. Animals provide fertilizer, pollinate plants, and disperse seeds. Plants are also beneficial for animal homes since many species live in close proximity to plants.
Explanation:
Answer:
Plants depend on animals because most of them decompose other dead non living things into our soil. They give animals air and to humans as well.
They also depend on each other for food.
They depend on each other for shelter. For example an insect uses a tree branch as shelter and protects it in return to the tree branch.
How do muscle cells contract
Answer:
A Muscle Contraction Is Triggered When an Action Potential Travels Along the Nerves to the Muscles. Muscle contraction begins when the nervous system generates a signal. The signal, an impulse called an action potential, travels through a type of nerve cell called a motor neuron.
8) Index fossils, such as the one in the diagram, are useful to geologists for
correlating rocks because each species
A) was narrowly distributed and became extinct after a long geologic existence
B) was widely distributed and became extinct after a short geologic existence
C) is easily found and is living today
D) is rarely found and is no longer living
Whoever gets it right I will mark brainest
Please no links the sometimes don't work.
Why does this climate stuff matter? Select all that apply:
A. Climates don't matter, we can find a way to grow corn in the tundra.
B. Climates give life on earth a protected place to thrive.
C. Climate change could result in a loss of plant and animal life.
D. Climate change could increse plant and animal life quickly.
Answer:
C or B, but I think its C
Explanation:
Climate change could mean global warming and deforestation. Deforestation means less transpiration which leads to more droughts and less habitats. This could make animals or plants endangered or extinct.
What enzyme adds to bases to the new strand- the builder?
Because moving water deposits sediments on a regular basis, floodplains have ________ soil, that is ________.
Which describes how "Work Smarter, Not Harder" and "The Crow and the Pitcher" present the theme?
A The crow fills the pitcher with stones, and Kari pulls the field out from under the snow.
B The crow is challenged by the half-full pitcher, and Kari faces the board listing chores.
C Both the crow and Kari work slowly and steadily at their tasks.
D Both the crow and Kari must complete tasks in order to gain a reward.
Answer: the answer is A
How is phylogeny related to classification?
Answer:
Most modern systems of classification are based on evolutionary relationships among organisms – that is, on the organisms' phylogeny. Classification systems based on phylogeny organize species or other groups in ways that reflect our understanding of how they evolved from their common ancestors.
:)
What do plants use to make up their structure?
Answer:
Molecules of glucose join together to form cellulose. Next, glucose molecules combine to form long chains called cellulose. Cellulose is then used to build plant structures, like cell walls. As more cells divide, the plant's leaves, stems, and roots can grow larger.
where do divergent boundaries most often occur
mid-oceanic ranges I believe.
Part 1. Peggy is a 68-year-old woman who has worked long hours indoors her entire life. A recent checkup indicated that she was severely deficient in vitamin D due to inadequate intake and a lack of sun exposure. Following these findings, the doctor diagnosed Peggy with a (1) ______ deficiency of vitamin D, resulting in (2) __________ or poor bone mineralization. Her doctor explained that because of this vitamin deficiency, Peggy was not able to maintain appropriate levels of calcium, which had resulted in hyperparathyroidism. In this example, hyperparathyroidism (3)________a vitamin D deficiency disease.
answer choices to fill in the blank:
1. (A) primary or (B) secondary
2. (A) rickets or (B) osteomalacia
3. (A) is or (B) is not
Part 2. In order for the synthesis of vitamin D to occur, a series of steps are necessary and any disruption in this process can result in a deficiency of vitamin D. With this in mind, choose the situations or conditions that could contribute to a vitamin D deficiency. Choose all that apply.
(a)Living in a region without a lot of sunlight
(b)Having a lighter skin pigmentation
(c)Limited or no use of sunscreen outdoors
(d)Having liver disease
Answer: see explanation
Explanation:
1. Peggy is a 68-year-old woman who has worked long hours indoors her entire life. A recent checkup indicated that she was severely deficient in vitamin D due to inadequate intake and a lack of sun exposure. Following these findings, the doctor diagnosed Peggy with a (primary) deficiency of of vitamin D, resulting in (osteomalacia) or poor bone mineralization. Her doctor explained that because of this vitamin deficiency, Peggy was not able to maintain appropriate levels of calcium, which had resulted in hyperparathyroidism. In this example, hyperparathyroidism (is not) a vitamin D deficiency disease.
2. Based on the information given, the situations or conditions that could contribute to a vitamin D deficiency include:
• Living in a region without a lot of sunlight
• Having liver disease.
Select the correct answer.
What type of biotechnology would forensic scientists probably use most often to perform their job?
OA DNA fingerprinting
OB. selective breeding
OC. reproductive cloning
OD. gene therapy
Answer:
OA DNA fingerprinting
identify the process that does not require phase change.
A. Transportation
B.Evaporation
C. Condensation
D. Infiltration 
Answer:
Transportation>condensation>precipitation>infiltration
Explanation: