A young man recently learned from a genetics doctor that he had a condition called Friedreich's ataxia. This syndrome affects the arms and the legs with the person usually needing a wheel chair. Neither of his parents have this disorder. However the young man's grandfather was wheelchair bound, but didn't know why because genetic information was very limited when his grandfather grew up.
What are the genotypes of each of the individuals mentioned in this question? Create a pedigree chart to support your answer.
Answer:
i believe dominant genotypes
Explanation:
from memory sorry for no pedigree chart
Please help!!
Does the amount energy from food eaten by each organism equal the amount of energy used but each organism?
Answer:
Ecosystem follows the 10% law.
Explanation:
The amount of energy that is available in the ecosystem is equal and same is equally distributed. Plants use solar energy and convert it into usable energy for processing food and water in tissues and reproduction and root development. Later on when the plant dies or is eaten up the dead organic matter is converted to energy that is derived by the herbivorous or primary consumer. When then (90%) lost through respiration and digestion, waste generation in the body. After which the energy left may be again taken up by some secondary consumer and only 10% energy remains while the rest is diffused in the ecosystem and environment. Thus energy is neither created nor destroyed but transformed in its form.8. In chickens, brown feathers are dominant over red feathers. Suppose we cross two heterozygous chickens.
Draw the punnett square and list the genotypes and phenotypes of the offspring.
I
Genotypes of offspring:
Phenotypes of offspring:
Plz help me
Answer:
Crossing two chickens heterozygous for the trait feather color, when brown feathers are dominant over red feathers, will produce offspring with brown and red feathers in a brown:red phenotypic ratio of 3:1.
Explanation:
Knowing that in chickens brown feathers are the expression of the dominant allele (B) and the recessive allele is red (b), crossing two heterozygous individuals (Bb) will result in offspring that are likely to have brown or red feathers.
The cross can be represented by a Punnett Square:
Bb X Bb cross
alleles B b
B BB Bb
b Bb bb
Where the result is:
Genotypes:
Bb, 50% BB, 25% bb, 25%Phenotypes:
Brown feathers, 75% Red feathers, 25%.In this case, the probability of having brown or red feathers is 3:1.
What is an astronomical unit or AU?
A)
A unit of time equal to one light year or 6 trillion miles.
B)
A unit of distance equal to the average distance from Earth to the Suntor
93 million miles.
A unit of distance equal to the size of the Milky Way Galaxy or 100,000
light years across
D)
A unit of time that is equal to the amount of time it takes light to travel
from the Sun to Earth,
Answer:
B
Explanation:
The correct option should be B.
The Astronomical Unit, AU, is a measurement unit for length in general astronomy and represents the mean or the average distance of the sun from the earth.
Mathematically, in astronomy,
1 astronomical unit = 150,000,000 km
But then, 1 km = 0.621371 mile
Hence,
150,000,000 km = 150,000,000 x 0.621371 miles
≈93,000,000 miles
Therefore, 1 astronomical unit can also said to be approximately equal to 93,000,000 miles.
The correct option is B
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Why do the northern United States get more snow than the southern states?
A) Because there are colder temperatures in the winter months in the northern states
B) Because there are colder temperatures in the winter months in the southern states
C) Because there are warmer temperatures in the summer months in the northern states
D) Because there are warmer temperatures in the summer months in the southern states
Answer:
it a
Explanation:
i did it
Radioactive strontium (Sr) is harmful to humans. Strontium, when ingested by cows, can be introduced to milk through the process of replacing an element of the same group or family that has similar properties. Using the Periodic
Table, which element do you think can be easily replaced by strontium in milk?
Answer: K
Explanation:
Radioactive strontium (Sr) is harmful to humans. Strontium, when ingested by cows, can be introduced to milk through the process of replacing an element of the same group or family that has similar properties. potassium (k) element can be easily replaced by strontium in milk
What is radioactive material ?The radioactive material is a liquid, solid or gaseous which can be defined as the element containing radionuclides in concentrations .
These elements are more than the concentrations established as exempt by government authorities where Radioactivity is the emission of ionizing particles released by the disintegration of atomic nuclei.
This type of radioactive wastes are released in various industries through normal operations, flowing from facilities and environmental activities.
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Based on the law of conservation of matter, which
statement is true about a chemical reaction?
А
Mass stays the same.
B
Matter is created.
С
Matter is destroyed.
D
Matter in a reaction can never change states.
Answer:
a
Explanation:
why is it beneficial for female peacocks to choose to mate with a male peacock with a full colorful trains?
URGENT
Answer:
Peahens often choose males for the quality of their trains -- the quantity, size, and distribution of the colorful eyespots. Experiments show that offspring of males with more eyespots are bigger at birth and better at surviving in the wild than offspring of birds with fewer eyespots.
What are the environmental and economical
uses of soil?
Answer:
Agriculture
Soil has vital nutrients for plants. As a result, it is used in agriculture to nourish plants. The roots of a plant receive nutrients from the soil to help it grow. The North Carolina Department of Agriculture and Consumer Services notes that 13 essential plant nutrients come from the soil.
Building
Soil is an important part of the building process. Soil compaction, which increases the density of the soil, is done as part of the building process. The purpose of the compaction is to improve the load support. If not done, structural failure can result. Soil can also be used as building materials such as adobe and red bricks.
and i cant write an mor
Long ago, the tree of life was seen as having five branches.
True or False?
Answer:
false, hopefully iss right
How many different amino acids are used in protein synthesis?
Answer:
Explanation:21 amino acids
Thus, protein synthesis relies universally on 61 sense codons that encode 21 amino acids — including the nonstandard amino acid selenocysteine [2] — and three termination codons.
What did Bill climb to get out of the Nye Lab?
Answer:I think it is A DNA molecule 5
sorry if I am wrong
Answer:
DNA
Explanation:
i think
What is the most important organism on the food web?
Answer:
autotrophs
Explanation:
please vote me as the brainliest i just need one more
Four substances are involved in both photosynthesis and cellular respiration. They are sugars, water, oxygen, and carbon dioxide. Describe what happens to these four substances during photosynthesis
Answer:
Explanation:
Photosynthesis is a light catalyzed chemical reaction that occurs in nature by all plants.
The process involves the reaction between carbon dioxide and water in the presence of sunlight.
This in turn produces glucose and oxygen gas.
The reaction expression is given as:
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
So, food is produced at the end of the reaction in form of glucose. In terms of energy, light energy is transformed into chemical energy stored in glucose.
Which behavioural adaptation was shown by butterfly"
A. Mimicry
B.predation
C. Protection
D.camouflage
Please needed as soon as possible thank you!
Answer:
hemopoiesis
It doesn't protect internal organs. All the others are functions of the skeletal system
Answer:
I think it is B)
production of blood-forming hormones.
Explanation:
All the other ones are functions of the skeletal system.
(GIVING BRAINLIEST!!!!)
Answer:
it's definitely saturn and jupiter
What % of energy does plants receive from the sun
Answer:
Most solar energy occurs at wavelengths unsuitable for photosynthesis. Between 98 and 99 percent of solar energy reaching Earth is reflected from leaves and other surfaces and absorbed by other molecules, which convert it to heat. Thus, only 1 to 2 percent is available to be captured by plants.
Explanation:
which subatomic particle of an atom moves around the nucleus
Answer:
Electrons
Explanation:
electrons, move around the nucleus
and electrons have a negative electrical charge.
Answer:
Electrons
Explanation:
The nucleus contains two types of subatomic particles, protons and neutrons. The protons have a positive electrical charge and the neutrons have no electrical charge. A third type of subatomic particle, electrons, move around the nucleus. The electrons have a negative electrical charge.
PLSSS PLLSSS I NEEDD HELP PLSSS S SSSUNNISMKS
20 POINTS
Three chairs were rolling across a flat office floor. The blue and red chairs are the same mass, and they have more mass than the yellow chair. Each chair was hit by another chair, but not from the same direction. Use the information in the diagram to answer.
Answer:
The answer is A
Answer:
answer is A hope it helps
True or false
The amounts of salt in ocean water is the same everywhere on earth?
Answer:
False
Explanation:
Different areas and seas have higher or lower salt levels
Can someone please give me an explanation for Interphase and what happens in interphase?
I will mark brainliest
Please dont copy and paste
Answer:
In Interphase The cell grows in the (G1) phase, replicates DNA in the (S) phase
then prepares for mitosis in the (G2) phase. This all happens in Interphase. Hope this helps!
Explanation:
If I have 8 DNA nucleotides, how many
DNA
bases do I have?
How many base pairs?
Answer:
Each nucleotide contains phosphate, sugar (of the deoxyribose type), and one of the four bases (Figure 8-4). When the phosphate group is not present, the base and the deoxyribose form a nucleoside rather than a nucleotide. The four bases are adenine, guanine, cytosine, and thymine.
Explanation:
The three smaller components that make up atoms are -
A- neutrons, protons and ions.
B- neutrons, electrons and protons
C- protons, ions and electrons.
D- electrons, neutrons and ions.
Answer:
its b
Explanation:
but I have to make the explanation 20 words so imma write random things down here jdjdnkoskdndhjejsjsoosjssnjdjdjdjso
True or False. Pepsin digests cellulose.
Answer:
true
Explanation:
Using the ecosystem model above, develop a constructed
response of whether energy can flow from each example listed
below. If energy does transfer, give an example
• animal to animal
•plant to animal
• animal to plant
•plant to plant
Answer:
Energy transfer in ecosystem follows the 10 % law.
Explanation:
In an ecosystem model, the transfer of energy starts with the base level that is from the grass level to the grasshopper that is the primary consumer. This is a plant to animal. The energy transferred from grasshopper to snake is an example of the animal to animal. The dead and decaying animal may transfer this energy back to the plant through the soil.I need help please.
Answer:
c.
Explanation:
How do typical human body temperature and pH explain why lactase can work efficiently in the human body of most humans?
Answer:
Lactase requires 6 pH and 37 degree Celsius temperature.
Explanation:
Lactase can work efficiently in the human body of most humans because the pH and temperature of the body is favorable for the lactase to work. Lactase has a range of pH from 2 to 7 but work best at the pH 6 and at the temperature of 37 degree Celsius which is the human body temperature and pH so that's why the lactase can work efficiently and effectively in the human body.
Being genetically identical to the parent is most advantageous for organisms in which situation?
A.
Many offspring are needed in a very short amount of time.
B.
The environment is just like the one the parent lived in successfully.
C.
Mates cannot be found easily and the species is dying out.
D
The environment is changing and fast reproduction is needed.
Answer:
B
Explanation:
In asexual reproduction organisms give rise to genetically identical clones and reproduce in higher amounts, hence option d environment is changing and the need for fast reproduction is correct.
What is genetically identical?The children are clones of both the parent and each other. Asexual reproduction has several advantages, including the ability to fast increase the population when conditions are favorable.
There is just one parent required. During sexual reproduction, two people's genetic material is united to generate genetically diverse children who differ from their parents.
It is assumed that the genetic variety of sexually generated offspring gives species a higher chance of survival in an uncertain or changing environment.
Therefore fast reproduction is needed, because the environment is changing, and asexual reproduction makes a higher population, hence option d is correct.
Learn more about genetically identical, here:
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Which statement correctly compares electric charge with electric current?
D) They both require a human to make them.
A) Neither require charged particles.
B) They both require a battery and a bulb.
C) They both require a movement of charged particles.
Answer:
I think it's C
Explanation:
Answer:
Answer is C)
Explanation:
Not all electricity is generated by humans, a battery or bulbs... BOTH must have an electric current in order to be active
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