Robert and his wife are ready to start a family, but they are concerned about having a child an inherited disease. This disease is a recessive disorder which requires both parents to contribute a recessive allele in order for the child to express the disorder. If both Robert and his wife are heterozygous for this trait, what is the probability that one of their children will have the disease?
The probability is 1/4
Both parents are heterozygous.
Aa + Aa
This will give the following possibilities for offspring genotype:
AA, Aa, Aa, aa
As you can see the chance of a offspring having 2 copies of the recessive allele (which is required for the offspring to have the inherited disease is only a 1 in 4 chance.
Help me answer!!!!!!
Answer:
C.
Explanation:
Mutated codons code for what in silent mutations?
Answer:
Code for the same amino acid as the original codon
Explanation:
Mutation, which is any alteration in the nucleotide sequence of a gene, can occur when there is a replacement of base nucleotides. This is called SUBSTITUTION MUTATION. Substitution mutation can either lead to missense, nonsense or silent mutations.
As stated in this question, SILENT mutation is the one in which there is no change in the amino acid sequence after translation of the mutated mRNA. In other words, the mutation leads to an alteration of codon but the MUTATED CODONS CODE FOR THE SAME AMINO ACID as the original codon, hence, no effect on the protein produced or individual, in general.
What happens to the cells of a person who has cancer?
Explanation:
Cancer happens when cells that are not normal grow and spread very fast. Normal body cells grow and divide and know to stop growing. Over time, they also die. Unlike these normal cells, cancer cells just continue to grow and divide out of control and don't die when they're supposed to.
Cancer cells continue to grow and divide out of control and don't die when they're supposed to.
1, describe how thermal energy/heat affects atoms within the 3 state of matter.
2, describe the process of sublimation.
3. describe the process of deposition.
4. list different phase changes might see on a jeepney/tricycle ride to school on a very cold morning
Answer:
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. ... Solids, liquids and gases all expand when heat is added.
Explanation:
A drought in this ecosystem makes the ground become very dry. Which of the following would most likely result from this
change?
OA.
The grass will shrivel and die, which will cause a decrease in the impala population
ОВ.
The grass will grow more rapidly, which will cause a decrease in the impala population.
OC.
The grass will grow more rapidly, which will cause a decrease in the cheetah population.
D.
The grass will shrivel and die, which will cause an increase in the cheetah population.
Answer:
A
Explanation:
The grass will shrivel and die, which will cause a decrease in the impala population
1.
Meiosis in Brennan's Mom's ovaries
Answer:
Ok... thanks for the points
Explanation:
What are the seven taxon characteristics of a human again?
K
ד ר ת
Answer:
I believe they are Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.
Explanation:
3. Synthesize in your own words, explain why scientists believe that threats to amphibians present a warning about a number of environmental threats to Earth's biodiversity Refer to the Case Study.
Explanation:
Scientists give three reasons. First, amphibians are sensitive biological indicators of changes in environmental conditions such as habitat loss, air and water pollution, ultraviolet (UV) radiation, and climate change.Amphibians are sensitive biological indicators of environmental circumstances such as habitat loss, pollution of the air and water, ultraviolet (UV) radiation, and temperature change.
What is biodiversity?The variety and variability of life on Earth is referred to as biodiversity or biological diversity. A measure of variation at the genetic, species, and ecosystem levels is called biodiversity.
Biodiversity refers to the variety of all the diverse species of organisms that dwell on our planet, including the plants, animals, insects, and microorganisms.
Each of these things exists in a delicate balance and coexists with the others in ecosystems that nourish and sustain life on earth.
Amphibians are sensitive biological markers of changes in environmental conditions like temperature, UV radiation, habitat loss, and air and water pollution.
Thus, scientists believe that threats to amphibians present a warning about a number of environmental threats to Earth's biodiversity.
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The marine iguanas of the Galapagos Islands feed on seaweed and algae. Marine iguanas have flattened tails while other species of iguanas that live inland on the Galapagos and on the South American mainland have rounded tails. Which of the following best explains this difference in tail shape?
Answer:
Flattened tails are better for swimming than rounded tails.
The difference in the tail shape is because Flattened tails are better for swimming than rounded tails.
This is due to the difference in habitats of the marine and inland iguanas.Why do plants adapt for different habitats?This is due to natural selection.By natural selection, the nature of the species gradually changes to became adapted to the niche.To know more about natural selection here
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There is a species of frog on an island that puzzles scientists. The proportion of frogs with no stripes is greater than the proportion of frogs with
stripes. This is puzzling because the unstriped trait is recessive (s), and the striped patterns are due to dominant alleles (S). Also, natural selection
seems to support the striped trait.
How do genetic factors most likely account for the proportion of traits in the frog population?
A. Most of striped frogs and unstriped frogs have the genotype ss.
OB. Most of striped frogs have the genotype SS and the unstriped frogs have the genotype ss.
C. Most of striped frogs have the genotype SS and the unstriped frogs have the genotype Ss.
OD. Most of striped frogs have the genotype Ss and the unstriped frogs have the genotype ss.
Hi
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Should ever come back...Should ever come back....
How many amino acids are attached to one tRNA?
Answer:
One amino acid
Explanation:
please help!!!!!!!!!!!
Answer:
Typically, the nucleus of a cancer cell is larger and darker than that of a normal cell and its size can vary greatly. Another feature of the nucleus of a cancer cell is that after being stained with certain dyes, it looks darker when seen under a microscope
Explanation:
In contrast to normal cells, cancer cells don't stop growing and dividing, this uncontrolled cell growth results in the formation of a tumor. Cancer cells have more genetic changes compared to normal cells, however not all changes cause cancer, they may be a result of it.
which of the following list the levels of organization from least complex to most conplex
A. community, organism, population, ecosystem
B. population, community, ecosystem, organism
C. organism, population, community, ecosystem
D. ecosystem, population, organism, community
During the winter months, mountains are often covered with snow. In the spring, the snow starts to melt, and it runs off the mountains into nearby lakes. One year, there was less snow on a mountain than normal. The lake near the mountain had a lower water level that summer.
How will this likely affect the lake habitat?
A.
The lake will freeze more easily in the summer.
B.
There will be more water for the fish to swim in.
C.
There will be less water for the fish to swim in.
D.
The temperature of the lake water will be lower.
Answer: this
Explanation:
The diving bell spider stores air underwater in a net of silk explain how this could be more advantageous than having gills
Answer:
Explanation:
Using its web as a gill, the diving-bell spider can live underwater with only occasional visits to the surface. The arachnid (Argyroneta aquatica) breathes air from a bubble that it grabs from the surface of water using fine hairs on its abdomen.
Last month, Sarah documented how her city suffered from acid rain. What type of pollution should the people in Sarah’s city try to control?
Answer: I need more information to answer.
Explanation:
hellllllllllllpp meeeeeeeeee pllllllllsssss..
Answer:
Yes; When the cell grows larger,, it needs more cell membraine to prepair for mitosis. Without this process, the cell would rupture.
Yes; The cell would not be able to grow if the surface area stayed the same.
Hope this helps ^v^
The range of waves that includes radio waves, microwaves, infrared, visible light, ultraviolet light, X-rays and gamma rays is called-
Answer:
The range of waves that includes radio waves, microwaves, infrared, visible light, ultraviolet light, X-rays and gamma rays is called
electromagnetic energy/spectrum.
What are the solutions to the human impacts of water?
no link answers please and put this in your own words will give brainliest!
Answer:
Conserving water, reducing car travel and other reasons for using gasoline, planting with organic gardening materials and not using traditional fertilizers, properly disposing of pharmaceuticals and finding alternatives to harsh soaps and detergents are all ways of decreasing the amount of pollution that ends up in our waterways.
Explanation:
What makes a species successful in an ecosystem?
Answer:
Beside the intensive loss of forest cover [2], fragmentation of the pristine remnants further affects species [3] and limits their ability to move into adequate areas. Thus the ability to cope with altered landscapes is crucial for the persistence of a species, especially in the face of climate change.
During exhalation the air pressure on the outside of the lungs is (greater than / less than) the air pressure
inside the lungs.
Answer:
greater than
Explanation:
hope it helps
MULTIPLE-SELECT QUESTION: CHOOSE TWO
CORRECT ANSWERS
STRUCTURES AND FUNCTIONS
A. There is not enough information to build the cladogram
B. The frog is placed in Position A on the cladogram above.
C. The pig is placed in Position B on the cladogram above.
D. The gorilla is placed in Position D on the cladogram above.
Answer:
B and D
Explanation:
17.
Why is it important to conserve the biodiversity of Earth?
A. to decrease the amount of global predator populations
B. to decrease the stability of major global ocean currents
C. to increase the stability of ecosystems during environmental
changes
D. to increase the amount of nonrenewable resources located in the
lithosphere
trna used in a sentence
Put these in order NO LINKS NO LINKS
Drag the structures to the appropriate boxes in order that oxygen would travel from the outside of your body to the blood stream
Choices: bronchi, nasal cavity, capillaries, trachea, pharynx, aveoli, bronchioles
IF YOU DON'T KNOW THE ANSWER, DON'T ANSWER THIS QUESTION
Answer:
Nasal Caviry
Trachea
Pharynx
Bronchi
Bronchioles
Aveoli
Capillaries
why are zebra mussels harmful to the lake
Answer:
The zebra mussels also outcompete the natives for food and space, and because of their fast reproduction can quickly overwhelm a water system.
Explanation:
The feeding habits of zebra mussels can also have a drastic impact on an infested lake. Zebra mussels are filter feeders that siphon particles of plankton from the water.
is food poisoning direct or indirect contact?
food poisoning is direct contact
Please help me answer this.
the questions are.
In part 1 of her exercise warmup, her heart rate ____ because ____ (include oxygen and homeostasis in your answer)
In part 3 of her exercise, endpoint/ cool down, her heart rate ____ because ______ (include oxygen and homeostasis in your answer)
What term refers to the zooplankton in the food chain above?
A)producers
B)consumers
C) plants
D) decomposers