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
Listeriosis is of particular concern for pregnant women because pregnant women are more likely than other population groups to get listeriosis. listeriosis can cause fetal death. Listeria bacteria can cross the placenta and infect the fetus. All of the choices are correct.
Answers
Answer:
The correct answer is ''All of the choices are correct.''
Explanation:
Pregnant women are a risk group for listeriosis, the disease caused by the Listeria monocytogenes bacteria found in contaminated food. This organism can cross the placenta and affect the fetus. Due to the decrease in cellular immunity, pregnant women are part of the population at risk and are 17-20 times more likely to develop listeriosis after the consumption of contaminated food and it usually occurs from the third trimester and appears as a disease mild with not very high fever, joint and muscle pain. Listeriosis can cause miscarriages during the first three months of pregnancy. As the third trimester is reached, the mother is at greater risk. It presents a 40-50% fetal or neonatal mortality. In the first or second trimester it produces septic abortions and intrauterine fetal death, in the third trimester she produces chorioamnionitis and premature labor. In 1/3 cases it can occur asymptomatically in the fetus / neonate. In newborns, listeriosis can cause blood infections and meningitis.
An important species of an Atlantic ocean community is the giant kelp, which helps form a suitable habitat for
fish and marine invertebrates.
Which of the following best describes the role of giant kelp in its ecosystem?
Choose 1 answer:
A dominant species
A pioneer species
A foundation species
An invasive species
Answers
Answer:
The giant kelp is a foundation species in its ecosystem.
Explanation:
The kelp acts as a home to the fish and the marine invertebrates, so they can be best described as a foundation species, or species that make an ecosystem suitable for a group of other species.
Answer:
from khan academy :)
HELP ME PLEASE FASST
Which of the following describes a scenario that could increase the winds of the jet stream?
O Faster global convection currents
O Decreasing radiation from the sun
O Equal heating of the Earth's surface
O Stopping conduction from the ground
Answers
Answer:
faster global convection currents!
Fortunately I just took this quiz and received 100%!
The statement that explains scenerio that can bring an increase to winds of the jet stream is A: Faster global convection currents.
Jet streams can be regarded as a fast flowing as well as narrow and meandering, air currents which is found on Earth and other planet. It is a bands of strong wind which moves to east from west in the globe.The wind of jet stream do increase by the action of wind current, because convection current do aid the movement of this this wind from a place to the otherTherefore, option A is correct.
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The structure of the cell membrane was discovered in 1895 by _________. Finding a similarity to Olive Oil, he discovers membranes are made of __________.
A. Charles Overton, amino acids
B. Gorter and Grendel, amino acids
C. Charles Overton, lipids
D. Irving Langmuir, lipids
Answers
The structure of the cell membrane was discovered in 1895 by Charles Overton . Finding a similarity to Olive Oil, he discovers membranes are made of lipids. Thus option C is correct.
What is cell membrane structure ?The cell membrane is primarily composed of a mix of proteins maintain the chemical climate of cell and lipids provide flexibility to membrane.
In lipid bilayer, phospholipids are the major component has hydrophilic head face to the aqueous cytosol and the extracellular fluid, where hydrophobic tail areas face opposite to cytosol.
Other types of lipid like cholesterol selectively dispersed in animal cell membranes.
Glycolipids present on the surface of cell membrane bind with a sugar chain , it help in recognition of other cells.
Major types of membrane proteins are peripheral membrane proteins exposed to exterior and Integral membrane proteins are present inside the membrane, some portion are transmembrane proteins are present on both sides.
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What adaptation do seeds dispersed through ballistochory have?
a)
sail-like structure
b)
smooth and aerodynamic
c)
hollow on the inside
d)
pleasant smell and taste
Answers
Answer:
smooth and aerodynamic
Explanation:
Seeds are usually smooth, like a baseball, so that they cut smoothly through the air and don't have a lot of wind resistance.
The adaptation that seeds dispersed through ballistochory has smooth and aerodynamic. The correct option is b.
What are adaptations?Adaptation is a biological process that is done by many plants and animals to survive in given conditions. Adaptation is causing the partial or full change in their body or functions to match with the environmental conditions.
Plants with ballistochory means possibly ejects by the seeds full stop this adaptation or evolution happened in which seats are dispersed into many tentacles and seats are dispersed into soils for pollination this comes under wind dispersion.
Seeds launch an angle and release the elastic energy store in the fruit. These adaptations are smooth.
Therefore, the correct option is b. smooth and aerodynamic
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what is hiberbation?
Answers
Answer:
Explanation:
Hibernation is an adaptation that allows an animal to escape cold weather and food shortages over winter.
What element is commonly used to date archaeological or geological materials?
Select one:
a. Phosphorus
b. Nitrogen
c. Hydrogen
d. Carbon
Answers
Answer:
D. Carbon
Explanation:
Carbon is the element that is commonly used to date fossils and ancient materials.
This is called carbon dating, where the concentrations of different carbon isotopes are used to determine the age of ancient materials.
Carbon dating has been used for almost 70 years and is still commonly used to date fossils.
So, the correct answer is D. Carbon
Answer:
Carbon
Hope it helps
laws of thermodynamics
Answers
Answer:
The Zeroth Law of Thermodynamics states that if two systems are in thermodynamic equilibrium with a third system, the two original systems are in thermal equilibrium with each other. The Second Law of Thermodynamics states that the state of entropy of the entire universe, as an isolated system, will always increase over time. The First Law of Thermodynamics states that energy can be converted from one form to another with the interaction of heat, work and internal energy, but it cannot be created nor destroyed, under any circumstances. The 3rd law of thermodynamics will essentially allow us to quantify the absolute amplitude of entropies.
1. alveoli, tiny air sacs within the lungs muscle below the lungs used for, 2. bronchi, breathing the two tubes into which the, 3. diaphragm, trachea divides before entering the lung
Answers
Answer:
1. Alveoli: tiny air sacs within the lungs.
2. Bronchi: the two tubes into which the trachea divides before entering the lung.
3. Diaphragm: a muscle below the lungs used for breathing.
Explanation:
Living system can be defined as the internal systems of organisms and how materials circulate within organisms.
Some examples of living systems in organisms are respiratory system, nervous system, digestive system, and circulatory system.
Additionally, living systems comprises of the following components; cells, organs, muscle, tissues, blood, etc., which are typically used for carrying out various bodily functions such as respiration, metabolism, digestion, etc.
In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.
1. Alveoli: it comprises tiny air sacs and it's located within the lungs of living organisms.
2. Bronchi: these are the two (2) tubes into which the trachea divides (the right bronchus and the left bronchus) before entering the lung.
3. Diaphragm: it's a muscle located below the lungs and typically used for breathing in all living organisms.
Help!!!
I'll give brainliest the brainliest.
Answers
Answer:
resists the turgor pressure of the cell: A : cell wall
controls the activities of the cell : C : nucleus
site of the chemical reactions of the cell including synthesis of proteins: D : cytoplasm
Answer:
1. A - Cell Wall
2. C - Nucleus
3. B. Mitochondria
Give brainliest
The element with atomic number of 4 is
Answers
Answer:
Beryllium is the element with the atomic number 4.
explain how bacteria cam develop resistance to an antibiotic?
Answers
Explanation:
Bacteria develop resistance mechanisms by using instructions provided by their DNA. Often, resistance genes are found within plasmids, small pieces of DNA that carry genetic instructions from one germ to another. This means that some bacteria can share their DNA and make other germs become resistant.
hope this helps you
have a nice day
Need help someone knows the answer
Answers
Answer:
I believe it is B
What is a macromolecule? Question 6 options: a) a molecule that contains carbon b) a very large molecule c) a molecule that has two hydrogen atoms and one oxygen atom d) a molecule you can see with the naked eye
Answers
Answer:
b)a very large molecule
Explanation:
A macromolecule is a very large molecule, such as a protein. They are composed of thousands of covalently bonded atoms. Many macromolecules are polymers of smaller molecules called monomers. The most common macromolecules in biochemistry are biopolymers and large non-polymeric molecules such as lipids and macrocycles.
ANSWER AND I’LL GIVE BRAINLIEST
Which of the following statements can you infer would happen If one organ system stopped working?
a. The other organ systems would have to work harder to make up for the broken system
b. The other organ systems would stop working too.
c. The other organ systems would still work on their own but might have to work harder to complete their function correctly.
Answers
Answer:
b
Explanation:
After one system shuts down, the others would slowly start to shut down as well until the body can no longer maintain homeostasis and the person would slowly die. 3. All systems would be working together but the main ones would be muscular, nervous, and skeletal.
Each allele for a gene is found on a separate _____________.
A. gene
B. heterozygous chromosome
C. homologous chromosome
D. nucleus
Answers
Answer:
Homologous chromosome
Explanation:
what type of energy transfer happens when something freezes
Answers
Provide the botanical name for each of the following:
i.) Water grass
ii.) Morning grass
iii.) Soft weed
Answers
Answer:
i.) Watergrass: Luziola Juss.
ii.) Morning grass: Miscanthus Sinensis
iii.) Soft weed: Talinum Triagulare
Answer:
water grass–luziola
morning Grass–miscanthus sinensis
soft weed–chromolaena odorata
In the scientific process, what is the correct sequence for the following steps: A: Recognizing a problem/Asking a question; B) Testing a hypothesis; C Drawing inferences
Group of answer choices
ABC
ACB
CAB
BCA
Answers
Answer:
ABC
Explanation:
Ask questions, make a hypothesis, test the hypothesis, analyze results, draw conclusions, communicate results.
Environmental factors have no role in physical traits of individuals.
O True
O False
Answers
Answer:
pretty sure its false
Explanation:
environmenatal factors are what make physical traits useful, such as owls being able to see in the dark, their environment is nighttime forests.
Hope this helps!
briefly describe what the outer layer of bone tissue is like
Answers
Answer:
dinkachika
jingalalalalallalal
Answer:
Plz refer image for your answer
Explanation:
Hope it helps.. if yes plz mark me as brainliest
What can you learn about by studying DNA?
Answers
Answer:
Explanation:
The study of human DNA and genetics can be intellectually fascinating, but it also has plenty of practical applications. From the use of DNA in court cases to the discovery of new therapies for genetic diseases, a thorough understanding of the human genome can have important medical, social and legal impacts.
calculate the area of the following rectangular box.
Answers
Explanation:
here is your answer hope it helps you..
PLZZZ HELPPP I NEED THIS QUESTION ASAP PLZZZZZZ
Answers
Explanation:
6.
12300 (1.23×1000)
7.
4900 (4.90×1000)
8.
10.02 (1002÷100)
9.
1002000 (1002×1000)
10.
520 (52×10)
11.
7070 (70.7×100)
12.
9.87 (987÷100)
13.
122200 (122.2×1000)
14.
10 (1000÷100)
15.
100000 (1000×100)
Which of the following are NOT roles that zygomycota play in our ecosystem? Select all that apply.
They can have beneficial relationships with plants.
They are used in baking bread.
They are used in making beer or wine.
They are great decomposers of plants, soil, and dung.
They are used to control pests.
Answers
Functions that Zygomycota does in our ecosystem, have advantageous connections with plants, are excellent decomposers of plants, soil, and manure, and are employed to manage pests, hence options B and C are correct.
What are the roles that Zygomycota?They often dwell in the soil and eat decomposing plant waste close to plants. They play a significant part in the carbon cycle by decomposing manure, plant debris, and soil.
A group of fungi known as the zygomycetes is capable of causing disseminated, locally invasive, and cutaneous infections.
Rhizopus spp., Rhizomucor spp., Absidia spp., Apophysomyces spp., Cunninghamella spp., and Mucor spp. are all members of this class.
Therefore, the group of fungi known as Zygomycota may be the most ecologically diversified, hence options B and C are correct.
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Using complete sentences, explain how proximity to major rivers influenced the location of early cities.
Answers
Answer:
Locations along rivers meant faster travel upstream and downstream to rule territories. The city became the place where the ruler or rulers lived together in a stationary spot. The city's location along early rivers encouraged stronger government, which in turn encouraged stronger cities.
Rivers are one of the most crucial resources that played a major role in the development in ancient times. It led to river valley civilization that influenced the location and kingdoms.
What is river valley civilization?The river valley civilization was one of the most important events that led to the establishment of many kingdoms and regions. The proximity to the river banks influenced many factors.
The cities located on the riverbanks have greater development in services including import, export, travel, agriculture, accessibility, etc. This allowed the people to practice agriculture on a large scale due to the availability of the irrigation system.
The river banks allowed the cities to grow as major trade centers and allowed downstream and upstream travel easier. This also led to the emergence of strong government systems.
Therefore, the proximity to major rivers led to river valley civilization.
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hormones in the bloodstream
Answers
Answer:
insulin
Explanation:
Answer:
chemical messenger.
Explanation:
1. Assertion: Mother may be a carrier for haemophilia.
Reason: The father is always a carrier for haemophilia.
(a) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
(b) Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
(c) Assertion is true, but the Reason is false.
(d) Assertion is false, but the Reason is true.
Answers
Answer:
c
Explanation:
The assertion is true,but the reason is false because the mother is the carrier.
I hope this helps
What is measurement? Write any two importance of it. Why do we need measurement?
Answers
Answer:
The comparison of an unknown quantity with a known established standard quantity.
any two important of it are:
a) it helps in performing scientific experiments to establish truth about a physical phenomenon.
b) It helps in performing experiment for making our daily food.
eople that have a single allele (gene copy) for sickle cell anemia are typically not sick from the disease and are said to be carriers of sickle cell trait. These people will more often live in the malaria belt of sub-Saharan Africa. The most likely explanation for this is ________. malaria is a cause of sickle cell trait people with sickle cell trait have a better chance of surviving malaria sickle cell trait is passed on to the biting mosquitoes as malaria There is no correlation between a single allele for the pathology and the ability to survive or fight malaria.
Answers
Answer: people with sickle cell trait have a better chance of surviving malaria.
Explanation:
Malaria is a very prevalent disease in the malaria belt of Sub-Saharan Africa which includes much of western and central Africa. The people here have therefore grown to have better immunity to malaria by developing the sickle cell trait.
This has helped them survive both malaria and sickle cell anemia which doesn't affect them even though they carry the sickle cell trait.
