Based on the pedigree, the percentage of offspring who are carriers of sickle cell anemia is 50%.
What is sickle cell anemia?Sickle cell anemia is a disease of the red blood cells in which mutations in the haemoglobin results in inability of the red blood cells to carry oxygen efficiently to the cells.
Based on the pedigree chart, the carriers of sickle cell are those that are half shaded black.
Two out of four of the offspring are shaded this way.
Percentage = 2/4 × 100% = 50%.
Therefore, the percentage of offspring who are carriers is 50%.
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What four things do all living things need to survive?
Answer:
The answer would be food, water, shelter, and space.
Explanation:
Answer:
They need air, food, water, and shelter.
Explanation:
hope this helps!
write any two function of skeleton system
Two functions of the skeleton system are:
It is a support structure for the bodyIt provides protection our internal organsWhich type of tissue described in lecture is involved in support, connecting body parts, and cushioning?.
How does vitamin e stop oxidative damage in a cell membrane?.
Answer:
Vitamin E acts as an antioxidant by donating an electron to free radicals. By reducing the free radicals, vitamin E stops the oxidative damage caused by free radicals.
It should be noted that the donation of electrons to free radicals is how all antioxidants work, not just vitamin E.
Did I do this right? If not can some correct them please
Answer:
yes you have done it correct
Pls help.
Are there any parts of the human body that get oxygen directly from the air and not from the blood?
Are there nuclear reactions going on in our bodies?
Can humans ever directly see a photon?
Answer:
A) Cornea in the eye
B) Yes, there are nuclear reactions constantly occurring in our bodies, but there are very few of them compared to the chemical reactions, and they do not affect our bodies much. All physical objects are made of molecules. A molecule is a series of atoms linked together by chemical (electromagnetic) bonds.
C) Photons are the only things that humans can directly see
Paleomagnetism suggest the earth acts as a giant magnet
O True
False
Answer:
True
Explanation:
Gravity pulls everything in
26) Living things are interdependent This means that they depend on each other to survive. The sun makes the plants grow, animals eat the plants, animals eat other animals. What does this represent? A) food web B) population reproduction D) relationships
Answer:
A) food web
Explanation:
food web is all of the food chains
nationalgeographic
Which of the following is an example of abiotic factors affecting an ecosystem? I. quantity and quality of water II. amount of light available III. nitrogen fixing bacteria IV. quantity of mineral A. I and II only B. I, II, and III only C. I, II, and IV only D. I, II, III, and IV
Which of the following is an example of abiotic factors affecting an ecosystem?
ANSWERThe correct answer is letter C. I, II, and IV only.
III. Nitrogen-fixing bacteria is an example of a living being (biotic) , so it isn't an abiotic factor that affects the ecosystem. While quantity, quality of water, amount of light (sunlight), and quantity of mineral in the soil are all examples of abiotic factors (non-living elements) that make difference in the environment.
help me please with explanation
Answer:
E: provide a meeting site for mRNA and tRNA
According to complementary base-pairing rules, for every G in the DNA double helix, there must be __________.
Answer: One C
Explanation:
According to the complementary base pairing rules, it’s a 1:1 ratio of A and T and a 1:1 ratio of C and G. For example if there’s 26 adenine, there should be 26 thymine
In addition to the leaf shape (narrow and broad) and leaf vein arrangement (parallel and non-parallel), leaf ______ is used to classify plants.
Answer: Margin shape
Explanation:
In addition to the leaf shape (narrow and broad) and leaf vein arrangement (parallel and non-parallel), leaf margin shape is used to classify plants.
IMPORTANT!!!
The town council votes to construct an energy plant on the bank of a large river. It uses river water in its cooling tanks and releases the wastewater back into the river. How might this activity affect the local watershed?
I. The energy plant will likely flood the area during heavy rainfall.
II. The energy plant will likely pollute the water flowing in front of it on the riverbank
III. The energy plant will stop all water flowing through the watershed.
II only
I and III
II and III
I, II, and III
This is correct
II. The energy plant will likely pollute the water flowing in front of it on the riverbank
Hope this helps :))
Which of these glands produce a hormone that stimulates cells in the immune system?.
Answer:
Adrenal glands
2.2 If you are going to plant the following, which minerals/ nutrients will need to be modified and how? (Refer to theme 7 for requirements) (20) Eragrostis curvula, 3.2 Lolium multiflorum, 3.3. Cenchrus ciliaris. 3.4 Medicago sativa
Among the plant species mentioned, only the Medicago sativa species needs soil modification for its planting.
Eragrostis curvulaCultivated in full sun, but tolerates partial shade. Rustic, not developed in terms of soil, it adapts to poor, dry or humid soils.
Lolium multiflorumThis weed can occur at various times in wheat
Cenchrus ciliarisPlanting is usually carried out by seeds, being a manual in general. Sowing can be carried out in pots, furrows or by casting, when carried out in the rainy season.
Medicago sativaFlat areas marked by deep, fertile, well-drained soils, free of ponds and pH between 6.7 are the forage's preferred.
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2. A hypothesis is an educated guess based upon observation. It is an explanation of a single event based upon what is observed. A hypothesis has not been proved but can be supported by experimentation.
a) Suppose that out of 10 trees planted in a yard, only five survived. What kind of hypothesis could you make about this observation or event? Remember that a hypothesis needs to have a certain format. (2 points)
b) How could you test this hypothesis? What type of experiment could you perform? (2 points)
c) How would this hypothesis be different from a scientific law? Review the definitions of law and hypothesis to help you. (2 points)
A law is backed by scientific evidence which is reproducible while a hypothesis is just a guess that may be confirmed or disproved by experiment.
What is a hypothesis?A hypothesis is a guess that is based on enormous background information. If only five trees survived, it is possible that they received more light than the other 5.
In that case, I will design an experiment in which the same kind of plant is randomly assigned to different treatment groups that receive varying degrees of light and the rate of growth of each group is compared.
A law is backed by scientific evidence which is reproducible while a hypothesis is just a guess that may be confirmed or disproved by experiment.
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What makes the pancreas, liver, and gallbladder so important in digestion?.
Answer:
What makes the pancreas, liver, and gallbladder so important in digestion?
The pancreas supplies digestive juice to the small intestine through small tubes called ducts. Liver—The liver produces a digestive juice called bile that helps break down fats and
Answer: the person above me is very smart and is correct!
Explanation:
A mutation has occurred that prevents uvra and uvrb from forming a complex. What result will this have on damaged dna?.
this was for science one of the only questions i did not finish
Draw Conclusions What can you conclude
about two organisms that can mate and pro-
duce fertile offspring?
Answer:
You can conclude that these organisms belong to the same species.
Explanation:
2 come from the same family then they mate and now there are 3 from the same family.
what can individuals do to identify language that is racist?
Answer:
Ask yourself if you would be offended by the language. If so, then it is very likely that it might also be offensive or racist to others.
:5 In chipmunks, the dominant allele (H) codes for short-haired fur and the recessive allele (h) codes for long-haired fur. What is the probability that the offspring of a cross between a male chipmunk (Hh) and a female chipmunk (hh) will have either fur type?
Answer:
50% will have long hair!=
Explanation:
When you cross between Hh and hh, two out of four are Hh, which is long hair, and two are hh, which is short hair.
The formation of two species from one original species is known as.
Answer:
I would assume it was something like a fusion
In the space provided, describe the similarities and differences between the seasonal changes of the oak tree in Florida and the oak tree in Maine make it Conclusions
Science pls
Answer:
FLORIDA
Explanation:
What is the process of breaking down rocks to make soil?
A. weathering
B. aerating
C. fertilizing
D. recycling
Answer:
A
If right please make brainleist for others to learn from this answer thanks!
Explanation:
Answer:
A.Weathering.
Explanation:
The process of breaking down rocks to make soil is called Weathering .
which statement correctly describes events in the space race
A. The soviet union sent the first human into space, and the United States sent the first human to the moon.
B. Germany sent the first human into space, and the United States launched the first artificial satellite.
C. The soviet union launched the first artificial satellite, and the United States sent the first human into space
D. The United States sent the first human into space and sent the first human to the moon
Answer:A
Explanation:
What are the three main functions of the cardiovascular system?.
Answer:
transport of oxygen, carbon dioxide and nutrients
clotting of open wounds
regulation of body temperature
Explanation:
PLEASE HELP FOR BRAINLIEST!!!
Mountain ranges, subduction zones, and trenches might all result from ____
A. transform boundaries
B. divergent boundaries
C. convergent boundaries
D. equatorial boundaries
Answer:
The answer is Convergent Boundaries
Animals living on the surface of soft-bottomed habitats anywhere in the ocean are known as __________. a. hermatypic b. ahermatypic c. infauna d. epifauna
Answer:
C. infauna
Explanation:
Hope that helps!
consequences of bullying