4. If you are male, which member of your family should you look at to tell whether you are going to
go bald? Why? Use a punnett square to prove your answer.
Answers
Answer:
Your mother
Explanation:
If you are a male, the member of the family you should look at to tell whether you are going to go bald is your mother.
Baldness is a sex-linked recessive trait and as such, the two X chromosomes in females need to carry the allele in order for females to be phenotypically affected for the disorder. The males having only one X chromosomes however, means that they only need that single X chromosome to carry the baldness allele in order for them to be affected for baldness.
Assuming the allele for baldness in represented by b. Your mother is affected for baldness while your father is free from the disorder. This means that the genotype of your mum would be [tex]X^bX^b[/tex] while that of your dad would be [tex]X^BY[/tex]. According to law of inheritance, males usually inherit their X chromosomes from their mother. This means that any male your mother gives birth to would have the genotype [tex]X^bY[/tex] which phenotypically means that they will be affected for baldness.
The attached image shows the Punnet's square analysis of what will happen during inheritance.
Related Questions
Which could be its function?
A. Directing the growth of cells
B. Insulating the body
C. Forming muscle fiber
D. Storing energy
Answers
Answer: Forming Muscle Fiber
Explanation:
What method is used when you try several different solutions to see what
works?
Answers
.............................
what is a drawback to hydroelectric power?
A. fish being isolated on one side of the dam
B. water in the reservoir becomes warm
C. increases the dissolved oxygen
D. Increases the rate of nutrient flow downstream
Answers
Please Help Next to Mark’s house, there is a large meadow with small plants and no trees. Behind the meadow is a dense forest with large trees. On a hot summer day, Mark recorded the temperatures in the meadow and in the middle of the forest. Based on the results of your experiment, which place was cooler and why?
Answers
Answer:
The meadow with small plants and no tree will be hotter than the dense forest with large trees.
Explanation:
The large trees will serve as shade from direct sunlight
What is healthcare ?
Answers
Answer:
The organized provision of medical care to individuals or a community.
Define natural selection and give Example with detailed explanations.
Answers
Answer:
Natural selection is when animals who are able to survive in their environment flourish, and those animals who aren't die out.
Explanation:
Lets say there were two rival animals, we can call them plantoids 1 and 2. These plantoids were both trying to out-survive each other. The problem is birds loved to eat them, so through evolution plantoids 1 began producing toxins, so when chewed on the bird would be poisoned. For awhile this worked, and the plantoids without it were dying off. Then plantoids 2 created a thorn on their heads, and were able to blend well. This worked well, and sadly for plantoids 1 the birds were able to eat them. The birds went through natural selection and those who were immune to the poison survived. Now these two plantoids are two completely different species, and they were once the same. In the end plantoids 2 survived because they were more adapted to the setting they lived in.
The picture shows a contractile vacuole of a unicellular freshwater organism. The contractile vacuole regulates the flow of water into and out of the cell in an aquatic environement. What condtions cause the contracile vacuole to fill with water? Your answer: A.The concentration of water is greater outside the cell than inside the cell. B.The concentration of water inside the cell is the same as the concentration outside the cell. C.The temperature of water in the vacuole is higher than the temperature of its environment.
Answers
plz help!!!!!!!! A natural biological cooling process is sweating. Using your knowledge of endothermic and exothermic, explain why your body feels cooler when it sweats.
Answers
Answer and Explanation:
An exothermic reaction takes place when heat flows out of a system into its surroundings. ... When you sweat, the system – your body – cools down as perspiration evaporates from the skin and heat flows to the surrounding area. This means sweating is an exothermic reaction.
As in mitosis, in Meiosis the chromosomes move toward opposite poles of a cell in____.
Answers
Answer
The chromosones move toward opposite poles of a cell in Anaphase
The picture shows a contractile vacuole of a unicellular freshwater organism. The contractile vacuole regulates the flow of water into and out of the cell in an aquatic environement. What condtions cause the contracile vacuole to fill with water? Your answer: The concentration of water is greater outside the cell than inside the cell. The concentration of water inside the cell is the same as the concentration outside the cell. The temperature of water in the vacuole is higher than the temperature of its environment.
Answers
Answer:
The concentration of water is greater outside the cell than inside the cell.
Explanation:
In living cells, water moves by Osmosis across the cell membrane, which acts as the semi-permeable membrane. Osmosis is the movement of water molecules from a region of high water concentration (low solute concentration) to a region of low water concentration (high solute concentration).
The contractile vacuole of this freshwater organism helps regulate water intake and exit by storing excess water. According to osmotic flow, water will flow into the organism via its cell membrane (semi-permeable membrane) because the concentration of water outside the cell is high than inside the cell, hence, this causes an osmotic gradient causing water to flow into the cell. The water that flows into the cell is stored in the Contractile vacuole.
Which examples describe biotic factors interacting with the environment?
Answers
Answer:
Examples of biotic components:
animals, plants, bacteria etc...
Is this the answer you want?
Answer:
D: Butterflies resting on the flower of a plant
Explanation:
I hope this helps! i took the test if y'all needed to know
what responsibilities do humans have on the environment
Answers
Answer: Environmental responsibility. ... Respect the environment, making rational use of natural resources and taking steps to prevent pollution from the different processes involved in our industrial operations. Promote the sustainable use of raw materials and natural resources. In fact, our cognitive ability and understanding of nature obliges us to maintain the integrity of the environment. So we must change how we influence the land. We must respect the natural order of things and find a way to live accordingly.
Accordingly u can take points from this and then add to ur ans. I hope i was helpful
Answer:
The role of man in the protection of the environment, is to carry his responsibility of ensuring that whatever you do ,eat ,work, play, live, is of such a nature that it is not causing irreversible damage to the environment, and to limit the damage you may be causing by doing the things you do.
We can protect the earth by protecting trees, natural vegetation, water, natural resources, electricity, etc. We should sternly follow all the possible actions to control the environmental pollution and global warming.
HOPE THIS HELPS : D
Explanation:
What is the point when earth is closest
Answers
Answer:
When it is perihelion and winter in the Northern Hemisphere, the Earth is the closest to the Sun.
Explanation:
Above.
Mimicry is
A. when an organisms 'looks' like another organism
B. when an organism blends into its surrounding
C. when an organism changes tropic levels to 'look'
like another organism
Answers
Answer:
C. when an origanism changes tropic levels to look like another organism
Which type of organism most likely evolves first
Answers
Answer:
Prokaryotes.
Explanation:
They are single celled organism adaptive of living in earth older environment.
Moving from left to write on the graph, what does the loan from D to E represent?
Answers
What are the basic units of protein macromolecules?
Answers
Fast!!! Which is a FALSE statement about the blood that leaves the heart through the pulmonary artery? A. It is deoxygenated. B. It is transported to the lungs. C. It contains high levels of oxygen. D. It contains high levels of carbon dioxide.
Answers
Answer:
hope this helps
Explanation:
The pulmonary artery channels oxygen-poor blood from the right ventricle into the lungs, where oxygen enters the bloodstream. The pulmonary veins bring oxygen-rich blood to the left atrium. The aorta channels oxygen-rich blood to the body from the left ventricle.
Describe the concept of natural selection. Be sure to include contributing scientists and their contributions.
Answers
Answer:
Natural selection is the process in which survival of the fittest, a concept by Charles Darwin suggests that animals adapt to better suit their needs. Those who survive are the "fittest" and breed children with the trait until the unfit die out. He saw this with the Galapagos finches. there used to be 1 kind of finch, now there are 14.
I hope this helps u!
pls give a brainliest( had 40 down to 2 for no reason) and a thx ;)
i will thank u for it via profile thanking and comments
What factor contributes to cultural and environmental degradation ?
Answers
Answer:
Diffusion I think
Explanation:
not sure, hope it helps
function of a mitochondion
Answers
Answer:
mitochondria are to produce the energy currency of the cell, through respiration, and to regulate cellular metabolism.
Explanation:
the role of mitochondrion is to generate the energy commodity of the cell, by respiration, and control of cell metabolism.Mitochondrial is the ATP synthesis site for the cell. The amount of mitochondria present in a cell is also a strong predictor of the cell 's rate of metabolic activity; cells that are very metabolically active, such as hepatocytes, may have more mitochondria.
hope this helped!
Which of the following is the correct equation for photosynthesis?
a.) CO2 + light + H2O --> O2 + Sugar
b.) CO2 + sugar + H2O --> O2 + light
c.) O2 + light + H2O --> CO2 + Sugar
d.) CO2 + O2 + H2O --> Light+ Sugar
Answers
Answer: a
Explanation: light is a energy sourse for the photosintesis and sugar is glucose wich is the food formd at the end of phothosintesis like oxigen..(etc..)....
The answer option with the correct equation for photosynthesis is: A. [tex]CO_2 + light + H_2O --> O_2 + Sugar[/tex]
Photosynthesis can be defined as a biological and chemical process through which living organisms such as green plants (autotrophs), transform light energy (sunlight) into chemical energy.
The correct equation for photosynthesis is given by this chemical equation:
[tex]CO_2 + light + H_2O --> O_2 + Sugar[/tex]
Hence, the necessary input for the process of photosynthesis to take place include the following:
Water ([tex]H_2O[/tex]).Sunlight (light energy).Carbon dioxide ([tex]CO_2[/tex]).
In conclusion, oxygen and sugar are end products (output) of photosynthesis rather being an input.
Read more: https://brainly.com/question/12827458
Identify three of the seven common neurotransmitters and the functions of each. Then describe what each neurotransmitters controls or regulates in the body.
Answers
Answer:
Dopamine, Acetylcholine, Serotonin
Explanation:
Answer:
One common neurotransmitter is dopamine. It is an excitatory neurotransmitter that is involved in movement, learning, attention, and emotion. GABA is another common neurotransmitter, and it is a major inhibitory neurotransmitter. It is involved in anxiety, arousal, and sleep. Glutamate is a major excitatory neurotransmitter, and it is involved in learning and memory.
Acetylcholine: Serves as a messenger between each motor neuron and skeletal muscles, which accounts for its role in helping to control skeletal muscles.
Serotonin: Affects sleep, hunger, mood, and arousal; connected to aggression and abnormal behavior
Norepinephrine: Helps control arousal and alertness; helps in regulating mood
Endorphins: Major excitatory neurotransmitter; linked to memory and learning processes; released in response to pain and intense exercise
Explanation:
:) have a good day
Why do you think there is a ring with a dark gap within the body of the wood?
Answers
Which of the following do cells obtain from nutrients in food?
A. lithium
B. helium
C. energy
D. oxygen
Answers
In the triglyceride molecule shown below what are the three molecules
attached to the glycerol molecule?
A Glycolic acids
B. Fatty acids
C. Nucleic acids
Amino acios
Answers
Answer:B. Fatty acids
Explanation:
what is one of the cause of mechanical weathering
A. acid rain
B. Oxidation
C.animal actions
D. Carbon
Answers
it is a cause of mechanical weathering the actions of animals, their physical actions.
What is Physical Weathering?Also called "mechanical weathering", it occurs through physical processes, with the fragmentation of rocks forming different types of sediments (eg sand). It is mainly influenced by temperature and pressure variation.
With this information, we can conclude that it is a cause of mechanical weathering the actions of animals, their physical actions.
Learn more about Physical Weathering in brainly.com/question/14426457
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What happens in photo system II?
A: excited electrons are transferred to an electron transport chain
B: excited electrons are used to split water molecules
C: electrons are reenergized to be used in NADPH production
Answers
Answer: a option electrons are passed on the z- series scheme
Explanation:
Answer:
A. excited electrons are transferred to an electron transport chain
Explanation:
Answer from gradpoint
5
The outermost layer of the sun is called the
corona
chromosphere
ionosphere
photosphere
Answers
The example of a whale beached by the tides illustrates that
1. tides occur twice a day
2. tides impact marine life
3. tides are a leading killer of whales
4. tides are usually deadly and destructive
Answers
Answer:
I think its B
Explanation:
