Which statement about inheritance is true?
Girls get most of their traits from their moms; boys get most of their traits from their dads.
Male offspring will always have an X-linked genetic disease if the mom is a carrier.
Fathers always determine the gender of the offspring in humans.
Males never have Y chromosomes.
Answers
Answer:
The correct answer is the third statement.
Explanation:
In humans, the males possess one X and one Y chromosome, while the females possess two X chromosomes. Thus, the female always donates X chromosome to the gamete. In any case, the female always generates a similar kind of gamete. While the male either pass X or the Y chromosome to the progeny.
When the gamete with the X chromosome combines with the female gamete than the offspring would possess XX chromosomes and will be a female. On the other hand, when the gamete comprising the Y chromosome combines with the female gamete than the offspring would possess the XY chromosome and will be a male. Thus, it is the father who determines the gender of the offspring.
This is wrong. Parents gender does not affect traits passed on.
Males never have Y chromosomes.This is wrong, Males have to have a Y chromosome. (XY)
Male offspring will always have an X-linked genetic disease if the mom is a carrier.This is wrong. The male offspring have a 50/50 chance if the mother is a carrier, if she has the deseace than all the sons will have the decease.
Correct answerFathers always determine the gender of the offspring in humans.This is because the mom is XX and the dad is XY. The mom gives the X in the gene, and the dad gives the X for daughters (X,X) and gives the sons a Y (X,Y) Males are always XY.
If the mom is a carrier, h, then it will get passed down 50% of the time, and when it gets passed down to the males, they wiill have the deseace. If the mom passes the deacease down to the daughters, 50% will be a carrier too if the dad does not have the deseace. If the dad has the deacease, than 50% of the daughters will have the deacease, and the other 50% will be carrier, and still, 50% of the sons will have the deacease, while the other 50% will be completely clean. So in total 25% of the offspring will be a carrier, 50% will have the deacease, and the other 25% will not have the deacease or be a carrier.
Related Questions
You cross a red flower with a white flower, and all the seeds result in pink flowers. This is an example of
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Answer:
Di truyền trội lăn không hoàn toàn
Explanation:
Can someone help me!
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Answer:
1. Food is broken down
2. Food is mixed
Make me brainliest
2: food is mixed
How many glycosidic linkages would be found in a polysaccharide composed of 311 monomers linked together?
Answers
Answer:
310
Explanation:
Dominic made the table below to organize his notes about mixtures. A 1-column table. The first column labeled properties of mixtures has entries has no set composition, must have more than one state of matter, must have more than one substance. What mistake did Dominic make? The title should read “Properties of Solutions” because some mixtures do not have all of the properties listed. There is a definite recipe to make each mixture, so the composition of a mixture is set. Although it is possible to have more than one state, it is also possible to have only one state. A single substance can be used to make a mixture if the substance is composed of more than one element.
Answers
Answer:
Explanation:
what
Who are the units of Newtons named
after?
A. American scientist, Sir Isaac Newton
B. English scientist, Sir Isaac Newton
C. French scientist, Sir Isaac Newton
D. German scientist, Sir Isaac Newton
Answers
1 poi A student draws a diagram of a plant cell. The diagram is 40mm in width. The plant cell is 0.02mm in width. What is the magnification of the student's drawing? A. 0.005 B. 0.08 C. x200 D. x2000
Answers
Answer:
D. x2000
Explanation:
magnification = image(drawing size)/actual size
magnification = 40/0.02
magnification = x2000
The magnification of the diagram is x2000. So, the correct option is (D).
What is Magnification?Magnification is the process of magnifying something. It enlarge the apparent size and not the physical size. This type of enlargement is certainly quantifiable. It also refers to the action of visually enlarging an object with the help of lenses.
This concept exist in two forms-
1. By microscope
It makes small objects appear large
2. By telescope
It makes a distant object which appear closer and the images are more clear and defined.
The formula of magnification represents the ratio of the height of the image to the ratio of the height of the object.
Magnification = image/actual size
For given example, magnification = 40/0.02
magnification = x2000
Thus, the magnification of the diagram is x2000. So, the correct option is (D).
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write a report on storm around the world
Answers
Sweeping out from southeastern Missouri on March 18, 1925, the Tri-State Tornado careened across the southern tip of Illinois before dissipating in lower Indiana. Remarkably, these three locales lie 219 miles (352 kilometers) apart, and the tornado traveled this distance in just three and a half hours [source: SEMP].
The onslaught of destructive winds and heavy rainfall was unfortunately familiar to a region that recently suffered another Category 4 landfalling storm – Hurricane Eta – just two weeks earlier. Eta was a Category 4 storm with 140-mph winds when it landed in Nicaragua on Nov. 3 before ripping a wide path of destruction through Honduras and Guatemala.
Heavy rainfall from these two storm systems brought widespread flooding to the region, triggered large and numerous landslides in Guatemala and Honduras, and was responsible for numerous casualties.
NASA’s Earth Applied Sciences Disasters Program supports disaster response and risk reduction efforts throughout the world — before, during, and after disasters strike – and is working to aid Central America with the impacts from these storms.
In the case of Eta and Iota, the Program is using imagery and data from Earth-observing satellites to provide scientific analysis to Guatemala’s National Coordinator for Disaster Reduction and is working with the Coordination Center for Disaster Prevention in Central America. The multi-agency collaboration is assisting local governments in Nicaragua, Honduras and Guatemala, El Salvador, Belize, Costa Rica, and Panama. The Program is also working with U.S. Southern Command to provide situational awareness for potential emergency humanitarian assistance.
Interactive map
Place the tiles in order so that they describe a population undergoing natural selection
Not all tiles will be used
Answers
Answer:
A new species of hawk that preys on rabbits is introduced to the habitatThe hawks have more success in catching rabbits with white fur because they are easier to see in the habitatThe rabbits´ white fur mutate so their fur is tan or brownThe next generation of rabbits has a higher proportion of individuals with tan and brown fur.Explanation:
Natural selection is an evolutive force that can act favoring an allele or against it, according to how it affects the fitness of individuals. Natural selection selects beneficial alleles and increases their frequency in the population.
When many organisms in a population sharing the same trait die, it is because they did not have good fitness, so they were not adapted to the environment and its pressures. The alleles coding for that trait were not good for the fitness of the animals, so they do not get to survive.
These individuals die before reproducing, so they could not transfer their genetic charge to the following generation. Eventually, the alleles coding for the trait will decrease in the population, probably near zero. Natural selection is acting against this phenotype. Other alleles will be beneficiated, and their frequency in the population will increase.
This change in alleles frequency is what we call adaptation.
Natural selection results in adaptation, which means the increase of the aptitude phenotype. Aptitude is the contribution of each genotype to the next generation.
In many cases, adaptations can be correlated to environmental factors or selective pressures applied by other organisms or habitats.
Let us remember that a mutation is a change or alteration in DNI sequences that introduce new variants. Many of these are eliminated, but some of them might succeed and be incorporated into each individual. These mutations are the ones that have been selected by natural selection.
So, in the exposed example, we are focussing on rabbits populations.
• The selective pressure or modeling environmental factor is predation by the introduced hawk.
• The rabbits´ response to predation is the survival of only those that carry mutations ⇒ tan or brown fur
• Natural selection benefits these mutations.
• Tan or brown rabbits survive and increase their fitness.
The two parts of cellular respiration which must occur twice for each glucose molecule that enters the process are
Answers
Answer:
the citric acid cycle and preparatory steps
Help label
Will give BRIANLIST
Answers
Answer:
1=deltoid tuberosity
2=head of humerus
3=medial epicondyl
5=trochlia
4=latral epicondyl
Hurry plz
Select each item in the left column and its match in the right column.
Answers
Answer:
Explanation:
Diploid - Having pairs of chromosomes
Chromosome - A strand of DNA wrapped around a protein
Haploid - Having only one set of unique chromosomes
DNA - The molecule that carries genetic information
Sex Chromosome - An X or Y chromosome
Homologous Chromosome - A pair of chromosomes that contain information for the same traits
A(n)____is the product of gametes from two different
sources.
Answers
Answer:
I guess the answer is meiosis
Explanation:
Maybe yes or no but am 98% sure so it's ur lucky day. haha
How can a scientist determine if two species are obligate mutualists? The scientist should observe the species in the environment to determine the types of interactions that the two species have. Then, the scientist should transplant each species alone to a new area and simultaneously transplant both species together to see if the single-species transplants die. The scientist should observe the species in the environment, determine the types of interactions that the two species have, and then add an invading species to see if it outperforms one of the other species. The scientist should observe the species in the environment, determine the types of interactions that the two species have, and then transplant both species to a new location to observe if they do better or worse than the individuals in their old location. The scientist should observe the species in the environment, determine the types of interactions that the two species have, and then remove one of the species to see if the other species does not survive.
Answers
Answer:
The scientist should observe the species in the environment to determine the types of interactions that the two species have. Then, the scientist should transplant each species alone to a new area and simultaneously transplant both species together to see if the single-species transplants die
Explanation:
When two species are obligate mutualists, both species benefit one another in such a way that one cannot survive without the other. Hence, in order to find out if two species are indeed obligate mutualists, they should be transplanted together away from other species on one side, and also transplanted individually on another side.
If they are obligate mutualists, the individual transplant would find it difficult to survive and should die in no time while the transplant done together should survive. All other factors being kept constant.
describe a tulip flower based on its physical characteristics
Answers
Answer:
D)The tulip plant is categorized as a monocot. The statement that best describes the flower based on its physical characteristics is "The tulip plant is categorized as a monocot." Monocots are plants the bears' flowers whose seeds regularly contain just a single embryonic leaf or cotyledon.
Explanation:
A hydrocarbon having chemical formula C4H8, has one double bond. Identify its class.
Answers
Answer:
This hydrocarbon because it possess at least 1 double bond it would be an Alkene. Alkenes possess at least 1 carbon carbon double bond. It is an example of an unsaturated hydrocarbon.
I hope that's correct!!
Scientists have noted patterns in the Earth's seafloor structures. For example, volcanic ridges are typically located in the center of the oceans, and trenches are typically located along the edges of continents. In addition, seafloor rocks found at the trenches are usually older than seafloor rocks found at the volcanic ridges. Which explanation of the past movement of the Earth's plates is best supported by this information? A. The continents were pushed apart when new crust formed in the center of the ocean and pushed older crust away from the volcanic ridges. B. The continents were separated when new crust that formed at the edges of the continents pushed older crust towards the center of the ocean. C. The formation of new crust at the trenches widened the seafloor and pushed the edges of the continents away from one another. D. The Earth's crust formed at the trenches and moved towards the volcanic ridges to make room for newer crust, pushing the continents apart.
Answers
Answer:
A. The continents were pushed apart when new crust formed in the center of the ocean and pushed older crust away from the volcanic ridges.
Explanation:
The crust is divided into many plates that move over the mantle. Nowadays, there are six different bigger plates and twelve that are smaller. These plates are limited by three types of ridges or borders that differ in the movement they produce.
Boundaries types:
I. Divergent
II. Convergent
III. Transforming
In divergent boundaries, a new crust is created by the rising molten materials coming from the mantle. Two plates separate, and the stream of hot material creates a new seabed between them. It occurs an expansion of the sea bottom. As old plates get separated, the new and young crust instantaneously gets formed. The emerging mantle occupies the space left by the separation of the two plates. This process occurs along with an underwater mountain range, known as the mid-oceanic ridge or divergent ridge. An example of this is the ridge located in the middle of the Atlantic Ocean, extending from Greenlander to the southernmost point of South America.
During what phase is the cell polyploid? Why is it polyploid at this point--what has happened to create this state and why is it important to the process?
Answers
Which food contains mostly polsaccharides
Answers
Answer:
food with carbohydrates
Explanation:
they comprises of two or more mono saccharides
what use are the descending branches of glacial plants to them?
Answers
Answer:
Explanation:
A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. Glaciers slowly deform and flow under stresses induced by their weight, creating crevasses, seracs, and other distinguishing features. They also abrade rock and debris from their substrate to create landforms such as cirques, moraines, or fjords. Glaciers form only on land and are distinct from the much thinner sea ice and lake ice that forms on the surface of bodies of water.
label the eye, thank you
Answers
Answer:
L = lens
M = Retina
Explanation:
Hope it is helpful....
In a cell, resembling a factory which organelle best describes the factory job at hand? Answer the following.
1. Job:
Conveyor Belt
Job Description:
Moves the products to the shipping department
2. Job: Assembly Line
Job Description:
Products are created from raw materials on the assembly line
3. Job: Packaging and shipping
Job description:
Packs nutrients and sends them off for distribution
Answers
Concerning the above image, what region of the eye contains rods/cones?
A) Sclera
B) Optic Nerve
C) Choroid
D) Retina
E) Other:
Answers
Answer:
Retina
Explanation:
The retina has rods and cones.
Rods help us see dim images and comes help us see bright and colored images.
Under which circumstance will a disease not spread beyond a few individuals in a population? If the rate of infection is lower than the rate of recovery, the reproductive ratio of the infection will be less than 1. If the rate of recovery is lower than the rate of infection, the reproductive ratio will be greater than 1. If the primary case infects a large number of people very quickly, the reproductive ratio will be less than 1. If the reproductive ratio is greater than 1, only a few individuals in a population will be infected.
Answers
Answer:
The correct answer is - If the rate of infection is lower than the rate of recovery, the reproductive ration of the infection will be less than 1.
Explanation:
The rate of infection is the chances or occurence of new cases of infection in a particular population over a particular time period and the rate of recovery is the occurence of the recovery of an individual case over a period of time. These two rates determines if a disease or infection is spreading faster or lesser.
The higher the rate of infection to rate of recovery it is more lkely to be spreading rapidally and higher the rate of recovery the infection not spreading beyond few individuals in the population. In the later case, the reproductive ration of the infection will be less than 1.
The process of chewing, smashing, and grinding food in the mouth is called
peristalsis
mechanical digestion
absorption
chemical digestion
Answers
The process of chewing, smashing, and grinding food in the mouth is called mechanical digestion (option B).
What is digestion?Digestion is the process, in the gastrointestinal tract, by which food is broken down into simpler substances that can be utilized by the body.
Digestion can occur in the following ways;
MechanicallyChemicallyMechanical digestion involves the breakdown of food molecules by physical means such as grinding, chewing, smashing etc.
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how are proteins and nucleic acids related
Answers
Answer: Deoxyribonucleic acid (DNA) encodes the information the cell needs to make proteins. A related type of nucleic acid, called ribonucleic acid (RNA), comes in different molecular forms that participate in protein synthesis
Explanation:
the device that is used to measure the level of hemoglobin that is saturated with oxygen is known as
Answers
yuh
the device that is used to measure the level of hemoglobin that is saturated with oxygen is known as pulse oximetry
in your own words, what is the definition for Lysine?
Answers
B.Fill in the blanka with the correct word given inside the box.
clay. water. sticky. loam
oxygen. sand. plants. particles
7.________ is made up of particles that are tightly packed together.
Very fine 8._________ of rocks can hold much water and become 9._________
when wet.While 10.________ is a mixture of sand and clay,this contains the right mixture of particles of silt,sand and clay.
Answers
Answer:
7=clay
8=loam
9=sticky
10=loam
True or false? Phototropism only happens after plants move from darkness into the light.
Group of answer choices
False
True
Answers
Answer:
phototropism only happens after plants move from darkness into the light (false)
Answer:
The answer is false.
Explanation:
any four different between ecology and ecosystem? please help me to do this.
Answers
Explanation:
Ecology is the study of the relationship between living organisms and their environment. An ecosystem is a place, such as a rotting log, a forest, or even a schoolyard, where interactions between living and non-living things occur.
Answer:
Ecology is the study of the relationship between living organisms and their environment. An ecosystem is a place, such as a rotting log, a forest, or even a schoolyard, where interactions between living and non-living things occur.
