A. Crossing over
During synapsis in meiosis (when the homologous chromosomes pair together during prophase I), is when crossing over occurs, and the chromatids of the homologous pairs "cross over" and swap genetic material.
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While volunteering at a hospital, Alex learns that there are several different human blood types and they are determined by alleles. For example, a person with an allele for type A blood and an allele for type B blood will have type AB blood. Alex asks a nurse if blood type A or B is dominant. What answer does the nurse give him?
Answer:
They are codominant
Explanation:
There are 3 different alleles: IA, IB and i - IA and IB are codominants, i is recessive. Codominance means neither allele can mask the expression of the other and both alleles A and B are expressed in the blood type.
Blood type A and Blood type B both are dominant if allele A or allele B present with the O allele, however, they show codominance if they present together.
The human blood group system is known as the ABO blood group system that exhibits codominance. Following are the characteristics of this blood group system:
The system consists of three alleles A, B, and O.Both A and B are dominant in relation to O, and therefore blood group A or B can have the genotype AA or AO or BB or BO respectively.If both A and B are present together then they show codominance and have the genotype AB.Thus, the correct answer would be - both A and B are dominant if allele A or allele B present with the O allele, however, they show codominance if they present together.
Learn more about the ABO blood group system:
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what is weather and climate
can abyone help on tbis?
Answer:
It would be 32%
Explanation:
Hope this helps!!
what specific event prompted Dr.Bass to create the body farm?
Before having the farm, he was asked to estimate the post - mortem interval of some human remains, and then they indicated because the flesh that was still there they could tell it was a year ago.
How are gross production and net production different?
a. Net production is always greater than gross production.
b. Net production is always less than gross production.
C. Only animals have net production.
d. Only plants have net production.
Please select the best answer from the choices provided
Ο Α
OB
ОС
OD
Answer:
b. Net production is always less than gross production.
Explanation:
The main production i.e. done in ecology would do the production in the organic compounds with the help of photosynthesis. The gross production is the value i.e. generation of organic compounds by producers while the net production is the value of organic compounds i.e stored by producers. It should be lower than the gross production as the plants are not able to store large number of organic compounds than they generated
A pedigree is shown above that tracks a trait through four generations in a family. Based on the inheritance patterns of this trait, which statements accurately justify that this is a sex-linked recessive trait? Select all that apply.
A) Individuals 1-1 and 11-4 are carriers.
B) The trait is passed from fathers to sons.
C) Males are being affected more frequently than females.
D) The trait is expressed on a chromosome other than the X or Y.
E) The trait appears in later generations after being absent in one generation.
Answer:
The answer above is only one of the answers. The answers are A, C, and E! I did the USATestPrep and those were the answers. Mark as brainliest plz!
Explanation:
How does ex situ conservation help in biodiversity conservation?
Answer:
Agricultural biodiversity is also conserved in ex situ collections. This is primarily in the form of gene banks where samples are stored in order to conserve the genetic resources of major crop plants and their wild relatives.
Which of the following best describes the genes of offspring of organisms that reproduce sexually?
Answer:
Each of the offspring is genetically unique and received some of its genetic
Explanation:
While reproducing sexually, The zygote receives half of the gametes of male organism while half of the gametes of female organism. This constitutes to the total number i.e. 46 chromosomes.
While the zygote receive half from male and half from female, This means that the offspring produced by the zygote will have both the characteristics in common of the male as well as female. Remember that, Chromosomes contain gene which are particularly responsible for characteristics.
So, Each of the offspring is genetically unique and received some of its genetic information from each parent, so each has some traits in common with each parent.
Which of the following is not an environment factor affecting a well balanced physiology?
A)
temperature
B)
distance from the ozone layer
C)
altitude
D)
humidity
E)
number of sunny days
Answer:
B) distance from the ozone layer
Explanation:
The lesson states that environmental factors affecting a well balanced physiology are:
climatetemperature humidity number of sunny daysaltitudeWork backwards: if you find an offspring that is not genetically identical to its parent's organism, what type of reproduction created it? why?
Answer:
The organism was created via sexual reproduction.
Explanation:
If it were genetically identical to its parent, then that would've meant that it was created asexually. In sexual reproduction, the offspring's DNA is more or less a combination of both parents' DNA.
Using your knowledge of the water cycle, why do you think high sea surface
temperatures correlate to a large amount of water vapor in the atmosphere?
Answer:
Explanation:
The correlation between sea surface temperature and water vapor is that both are driven by seasonal changes. They both increase in the hemisphere during summer. Seasonal changes in water vapor are, however, more evident across the land, largely due to changes in land surface temperature.
If the versions of a gene for a trait are different, the organism is said to be
Answer these plssss!
1. Heterozygous
Heterozygous is defined as “having two different alleles of a particular gene or genes.”
2. Gene
Each DNA sequence that contains instructions to make a protein is known as a gene.
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Why can coastal areas support a great population of plankton than the open oceans?
Answ deeeeeeeeeeeeeeeeeeeeeeeznuts
Explanation:
Explanation:
I was over on the bench I was over on the bench I WAS OVER ON THE BENCH !
What organelle is pictured here?
Golgi complex
Mitochondria
Nucleus
Endoplasmic Reticulum
Answer:
endoplasmic reticulum
Answer:
Mitochondria
Explanation:
This looks nothing like the Golgi complex , Endoplasmic Reticulum, or the Nucleus. For whatever reason, it is not letting me post pictures, but Golgi complex and Endoplasmic Reticulum looks like loose spaghetti and the Nucleus looks like a ball. The Mitochondria has a bean shape with an inside like this.
Please hurry!!!
Identify the neurons described below.
are activated in the brain and spinal cord in order to send messages in response to the stimuli of touching the sharp object
cause you to pull your hand away from the sharp object
are activated first when you touch a sharp object
Answer:
The correct answer is:
1. interneurons, 2. motor neurons, and 3. sensory neurons.
Explanation:
There are three types of neurons that help in providing information of the external environment or stimuli to the brain and have an appropriate response according the stimuli. These three neurons are; sensory neurons, motor neurons, and interneurons.
Sensory neurons are the neurons that carry the signal or information of the stimulus which is activated first when you touch a sharp object, Interneurons are the neurons that are present in the brain and spinal cord when activated to send messages in response to the stimuli of touching the sharp object, motor neurons are the neurons is carry the response signals from the brain and spinal cord to the muscle as it cause you to pull your hand away from the sharp object
Answer:
1. Interneurons 2. motor neurons 3. sensory neurons
Explanation:
This is the correct order for this question on the edge assignment. Before you b*tch about it being wrong, please check and make sure you aren't on the question before this which has a the same answer choices in a different order.
In peas, the green pod color (G) is dominant to the gene for yellow pod color (g). If two heterozygous plants (Gg) are crossed. What percent of the offspring will be Green?
0%
25%
50%
75%
Answer:
75
Explanation:
took the test
Transcribe the following section of DNA 3’ G C C A T T A G 5’
Answer:
theres 2 answers actually
Explanation:
DNA TO RNA :
5’ CGG UAA UC 3’
DNA TO DNA :
5’ CGG ATT TC
Answer:
3' C G G U A A U C 5'
Explanation:
to transcribe means to change it into rna
to do that you just have to pair it with its nucleotide
thymine pairs with adenine
adenine pairs with uracil
guanine pairs with cytosine
cytosine pairs with guanine
3' C G G U A A U C 5'
hope this helps (:
Definition: Literally, one-celled.
Example: Some bacteria are this.
Answer:
single celled
Explanation:
why does deforestation occur
Answer: deforestation occurs because we need wood for our different uses, hence we cut down trees for them.Examples of uses-making wooden furniture, finding place for new infrastructures etc.
A compound that releases hydroxide ions in solution would most likely have which chemical property?
It would react with lipids to form soap.
It would react with metals to form a salt and water.
It would react with metals to form hydrogen gas.
It would react with carbonates to form carbon dioxide.
Answer: I think it would be 4/D It would react with carbonates to form carbon dioxide.
Answer:
Its D
Explanation:
Me Smort, Have A Meme
The process by which a bacteria cell divides into two identical cells is called:
A. Binary Fission
B. Regeneration
C. Cellular Meiosis
D. Fragmentation
which of the following accurately describes the relationship between the lungs trachea and alveoli in the respiratory system.
A. They work together to transport blood.
B.They work together to allow gas exchange.
C. They work together but with completely separate functions.
D. They work together to obtain nutrients to deliver to cells.
B
the lungs is an organ of respiration,while the trachea allows passage of air from the larynx to the bronchi Of the lungs.. the alveoli is a tiny air sac that takes the oxygen and allows the body going
The trachea divides into a left and right bronchus inside the lungs. These further separate into bronchioles, The tiniest bronchioles have tiny air sacs at their ends. They are known as alveoli. Thus, option B is correct.
What is the role of trachea and alveoli?The trachea splits into the right and left principal bronchi at the mediastinum at the level of the fifth thoracic vertebra.
The bronchi split off into progressively smaller channels before coming to an end in tiny air sacs known as alveoli.
During this process, oxygen diffuses from the alveoli to the blood through the alveolar walls' capillaries (small blood vessels).
Hemoglobin in red blood cells absorbs oxygen as it enters the bloodstream.
Therefore, trachea and alveoli in the respiratory system work together to allow gas exchange.
Learn more about trachea and alveoli here:
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what could you do to support or reject this hypothesis
Answer:
What is the hypothesis? You didn't show anything here.
Explanation:
explain why biodiversity in an ecosystem is important?
Answer:
It is important because we need many different types of animals. Food chains are made up of many different links, and if there are fewer links, this will lead to animals not being able to feed. Biodiversity boosts the ecosystem and leads to an ecosystem that is self sustaining and able to produce things for people.
Explanation:
why do we need to study the beginning of life?
What causes cells in living organisms to be different from one another?
O A An organism evolves new cell types in response to its environment
O B. The brain of an organism sends a signal to its cells to differentiate when the organismis in danger.
O c The DNA of an organism moves from one cell to another, allowing different cells to have different functions
O D. An organism expresses different genes at different times in development, causing cells to be specialized
Explanation:
The cell types in a multicellular organism become different from one another because they synthesize and accumulate different sets of RNA and protein molecules. They generally do this without altering the sequence of their DNA.
Which of the following does NOT increase genetic diversity?
A. Independent Assortment of Chromosomes
B. Random Fertilization
C. Crossing Over
D. Mitosis
How much more kinetic energy does your car have when it changes its speed from 16 km per hour to 80 km per hour
Answer:
The correct answer would be - 25 times more.
Explanation:
The kinetic energy of a moving object increases with the increase in the speed of the object. It is evident that the kinetic energy of a moving object increases as the square of its velocity or speed. It means if a car moves with the speed of 32 km/hr has four times as much kinetic energy as the car moving with 16 km/hr.
Similarly, if a car changes its speed from 16 to 80 km/hr the kinetic energy will be -
= (80/16)^2
= (5)^2
= 25 times more.
Thus, the correct answer would be - 25 times.
The correct answer would be - 25 times more.
The kinetic energy of a moving object increases with the increase in the speed of the object. [tex]K.E=\frac{1}{2}mv^2[/tex]It is evident that the kinetic energy of a moving object increases as the square of its velocity or speed.It means if a car moves with the speed of 32 km/hr has four times as much kinetic energy as the car moving with 16 km/hr.Similarly, if a car changes its speed from 16 to 80 km/hr the kinetic energy will be :
[tex]= (80/16)^2= (5)^2= 25 times more.[/tex]
Thus, the correct answer would be - 25 times.
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what determines the function of a protein
Answer:
The sequence of amino acids. - The three-dimensional shape of the folded protein. - If the coding sequence has a mutation that leads to a change in the amino acid sequence, the protein may have a different three-dimensional shape, reducing its activity.
Explanation:
how does water move through the water cycle
Answer:
The water moves from one reservoir to another, such as from river to ocean, or from the ocean to the atmosphere, by the physical processes of evaporation, condensation, precipitation, infiltration, surface runoff, and subsurface flow. In doing so, the water goes through different forms: liquid, solid (ice) and vapor.
Explanation: