Answer:
Caso: Ambos padres heterocigostos, Rr (Rh+)Caso: Padre heterocigoto Rr (Rh+). Madre homocigota recesiva rr (Rh-)Caso: Padre homocigoto dominante RR (Eh+). Madre homocigota recesiva rr (Rh-)Explanation:
El factor Rh+ es expresado por un alelo dominante que llamaremos R (Genotipo RR o Rr)El factor Rh- es expresado por un alelo recesivo que llamaremos r (Genotipo rr)1er caso: Dos padres con RH+ (R) tienen 5 hijos de los cuales 1 presenta el factor Rh-
si al menos uno de los hijos presenta el factor Rh-, entonces debe haber recibido un alelo recesivo r de cada padre. Por tanto los padres deben ser heterocigotos para el tipo de sangre Rh.
Parentales) Rr x Rr
Gametas) R r R r
Cuadro de Punnett) R r
R RR Rr
r Rr rr
F1) 3/4 =75% de la progenie es Rh+ (RR o Rr)
1/4 = 25% de la progenie es Rh- (rr)
2do Caso: Un padre con factor RH+ y una madre con factor Rh- tienen 6 niños de los cuales 3 son RH+ y 3 son Rh-
Entre los hijos de esta pareja hay algunos que muestran Rh+ y Rh-.
Si la madre es Rh-, entonces su genotipo es rr y solo tiene alelos recesivos r para pasar a la progenie.
Sabemos que el padre es Rh+, lo que indica que en su genotipo hay al menos un alelo dominante R. Puesto que la mitad de sus hijos tiene factor Rh-, podemos asumir que el hombre es heterocigoto para el tipo de sangre (Rr). De los contrario, de ser homocigoto dominante, toda la descendencia seria Rh+. El padre le hereda a la mitad de los hijos el alelo R y a la otra mitad el alelo r.
Parentales) Rr x rr
Gametos) R r r r
Cuadro de Punnett)
R r
r Rr rr
r Rr rr
F1) 2/4 = 1/2 = 50% de la progenie Rh+ (Rr)
2/4 = 1/2 = 50% de la progenie Rh- (rr)
3er caso: Un padre con factor RH+ y una madre que presenta un factor Rh- tienen 6 niños de los cuales son todos RH+
Si la madre es Rh- su genortipo es rr y solo puede heredarle a los hijos alelos recesivos, r.
El padre es Rh+, con lo que inferimos que el genotipo tiene al menos un alelo dominante R. Puesto que todos los hijos de esta pareja son Rh+, podriamos suponer que el padre es homocigoto para el tipo de sangre Rh+, heredandole a los hijos solo alelos dominantes.
Parentales) RR x rr
Gametos) R R r r
Cuadro de Punnett)
R R
r Rr Rr
r Rr Rr
F1) 100% de la porgenie es Rr, expresando el factor Rh+.
(Nota: Cabe aclarar en este último caso que es posible queel padre sea heterocigoto y aún no hayan tenido un hijo Rh-. )
Waste water is"________" by bacteria in the secondary treatment.
killed
digested
ignored
heated
What is feedback in a system?
the balance of competing factors in a system
the definition of what is part of the system and what isn't
the behaviors of the different components of a system
the regulation of a system by the output
Answer:
the regulation of a system by the output
Explanation:
just took test
3. You are studying a population of pangolins (a scaly anteater), and you determine that there are two scale phenotypes: a thick scale that is dominant to a thin scale. You also find that thick-scaled individuals are better able to survive encounters with predators.
What evidence would you need in order to determine if this selective advantage is changing the population? (1 point)
-The number of individuals displaying each phenotype in the current generation.
-The number of individuals displaying each phenotype in the offspring.
-The number of individuals that survive predator encounters.
-The number of individuals displaying each phenotype in both the current generation and the offspring.
Answer:
The number of individuals displaying each phenotype in both the current generation and the offspring.
Explanation:
The number of individuals displaying each phenotype in both the current generation and the offspring. The correct option is 4.
What is phenotype?The phenotype is the set of observable characteristics or traits of an organism in genetics.
The term encompasses the organism's morphology, developmental processes, biochemical and physiological properties, behaviour, and behavioural products.
To see if the thick scale phenotype's selective advantage is changing the population, we must compare the frequency of the thick scale phenotype in the current generation to its frequency in the next generation.
This would necessitate data on the number of people who exhibit each phenotype in both the current generation and their offspring.
As a result, the evidence we require to determine whether the selective advantage is changing the population is "the number of individuals displaying each phenotype in both the current generation and offspring."
Thus, the correct option is 4.
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If you could develop a scientific cure for something, what would it be and why ?
Answer:
If I could develop a scientific cure for any issue, it would undoubtedly be the cure for the disease of cancer. This is because I believe that cancer is the most cruel and horrible disease that any person can have, since it is ultimately the body itself that acts against the health of the person. Furthermore, in the absence of an effective cure, and given its extremely high incidence rate on the population, an eventual cure for cancer would be the most beneficial scientific and medical discovery in the history of mankind.
HELPPPP PLS ASAP
In sexual reproduction, a zygote is
A the product of fertilization of an egg by sperm
B the gamete responsible for the sex of the offspring
C.an egg that has not been successfully fertilized
D the final stage before the birth of an offspring
Answer:
A the product of fertilization of an egg by sperm
Answer: A
the product of fertilization of an egg by sperm.
Explanation:
Hope this helped
Do muscle cells and skin cells have the same dna? Explain
Answer: Yes
Explanation:
Are all oxygen atoms the same? And why
Answer:
No. They don't necessarily have to be the same. For example, there can be isotopes (different numbers of neutrons) or ions (different numbers of electrons). The only thing that can't vary between atoms of the same element is the number of protons, but the others can have some variation.
which of the following is not considered a natural resource a.plastic b.gold c.titanium d.coal
Answer:
Gold
Explanation:
Some one please help
1. Cell
2. Blood
3. Cells
4. Epithelial
5. Tissues
6. Stomach
7. Organs
8. Digestive
9. Organism
10. Human
Answer:
1. cell
2. blood
3. cells
4. epithelial
5. tissues
6. stomach
7. organs
8. digestive
9. organism
10. human
Explanation: Hope this was helpful....
asap Waste water from nuclear power plants is generally:
cold
muddy
radioactive
warm
Answer:
Warm is the Correct Answer
Explanation: I know this because the water that is used to cool Nuclear Power plants is usually returned back into the ocean but the water is warmer than the water in the ocean. This can lead to Thermal Polution which can kill species of fish that aren't used to such warm water.
Consider the illustration placed in the transcription box above. Identify and label on the illustration if any of the following are present: DNA, mRNA, rRNA, tRNA, and/or amino acid.
GIVING BRAINLIEST!!!
Which air temperatures usually result in snow and other forms of solid precipitation?
A) Freezing air temperatures
B) Cool air temperatures
C) Hot air temperatures
D) Warm air temperatures
Answer: B) Cool air temperatures
Explanation: Snow requires temperatures at the ground to be near or below freezing.
Think of an object, person, or place at home that functions similar to the cell membrane.
i think its a plant or dog since both of them also have cells
Because it permits materials to enter and exit a cell, a cell membrane can be compared to a door. A door allows objects to pass through it as it opens and closes.
What is cell membrane made of?With a few rare exceptions, p - series, which are made up of glycerol, a nitrogen base, and two fatty chain, are the primary component of cellular membranes, both cytoplasmic membrane and interior membranes. Therefore, the cell membrane serves two purposes: first, as a barriers keeping the components of the cell inside and undesired materials out, and second, as a gate permitting the passage of vital nutrients through into cell as well as the flow of byproducts out of the cell.
What role does the cell membrane perform?Every cell has a phospholipid bilayer, also called a cell wall, that shields the inside of the body from the outside world. The cell barriers is a lipid bilayer that is porous. The cell regulates the flow of substances from and to the cell.
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Help please :) brainliest involved
Answer:
First Option
Explanation:
The other three options basically are the cell theory!
The cell theory states that:
The basic units of life are cells.All cells arise from other pre-existing cells.All living things are made of cells.Since the 3 options state this, the first option (that all of them are part of the theory) should be correct.
Hope this helps.
Effects of heart disease
What are the effects of heart disease ?
Answer:
hope the answer helps this is what I understand
what is the endocrine system and how does it work
2. What are three factors that affect birth and/or death rates?
Answer:
Political, economic, and religious
Explanation:
Age: Mortality rates are different in different age group. Mortality is high among children and old people but it is low among youths.
Sex/gender: Studies have shown that women have longer life expectancy than men. It may be due to biological and social causes that affectthe life expectancy. Besides, it is also found that death rate among infants is also similar to the life expectancy of adults. The death rates for male infants are higher than those of female infants.
Nutrition Levels: The children, especially under five years of age, die due to lack of nutritious foods. A balanced diet is a must for a healthy living. There are deficiency diseases caused by protein, energy, carbohydrate, malnutrition and also by micro-nutrient deficiencies. These are the causes of high death rates.
Think of an object , person or place at home that functions similar to the chloroplast.
Answer:
a genarater powers a home
Explanation:
Can someone please help me. Complete the sentence.
The mutation caused the fgfria1 gene to encode a form of the Fgfriai protein that
could not send signals to the fish's body, so the common carp had
scales.
large, patchy
small, even
what happens when you start to go deeper into the atlantic ocean in your own words please?
Answer:
the density of the water will keep crushing you until you are DEAD
Explanation:
Answer:
not sure if you still want an answer, but here:
the further down you go, the colder it'll get because the sunlight won't reach down as far, also making it darker. the pressure will also keep building up until it gets to be too much for your body to handle and literally crushes you.
(iii) Write one function of each Microbe used in clean technology:
Microbes
Functions
(a) Geobacter
(b) HCB bacteria
(c) Thiobacilli
(d) Actinomycetes
Answer:
Explanation:
Geobacter is a microbe use in clean technology to oxidize compounds such as metals.
Hydrocarbonoclastic bacteria (HCB) are bacteria that function majorly in the biodegradation of oil hydrocarbons in marine and other environments.
Actinomycetes is a microbe use in the production of antibiotics and recycling of organic matter in the soil.
Thiobacilli are bacteria that have the ability to obtain energy from the oxidation of sulphur and reduced inorganic sulphur bonds. They are Majorly acidophilic or are called acid tolerant bacteria and they are capable of fixing able CO2.
The study of a living being is called biology.
The answer is mentioned below.
Those species which are not able to see with naked eyes are called microorganisms. According to the question, the uses of microbes are as follows:-
Geobacter is a microbe used in clean technology to oxidize compounds such as metals. It helps in the purification of the metals Hydrocarbonoclastic bacteria (HCB) are bacteria that function majorly in the biodegradation of oil hydrocarbons in marine and other environments. It helps in cleaning the polluted water.Actinomycete is a microbe used in the production of antibiotics and recycling organic matter in the soil.
Thiobacilli are bacteria that have the ability to obtain energy from the oxidation of sulfur and reduced inorganic sulfur bonds. They are Majorly acidophilic or are called acid-tolerant bacteria and they are capable of fixing able CO2. It also helps in the denitrification of nitrogen.
Hence, these are uses of microbes.
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is sleep deprivation inherited or spontaneous
Answer:
inherent
Explanation:
its most likely inherited
Yellow-eyed salamanders have been cited as an example of Batesian mimicry; their orange body color and yellow eyes mimic the coloration of the toxic California newt. Although the salamanders are palatable, their mimicry of a unpalatable species tends to prevent predators from attacking. In a follow-up study, Kuchta et al. observed the reaction of Western scrub jays (predators with toxic newt experience) when presented with both a yellow-eyed salamander and a closely related species after being presented with a toxic newt. What was significant about this study
Answer:
It was a follow-up controlled experiment that showed how a species can influence selection in another species.
Explanation:
A follow-up (cohort) study is a type of study followed over time in order to determine the development of a particular outcome. Moreover, a controlled experiment is one in which conditions are controlled by the researcher, and thereby it is easier to determine the incidence of the outcome. In the case above described, researchers performed a follow-up controlled experiment in which they measured how a species can influence selective processes undergone by other species.
identify the climate that has the most human settlements.
A. cold and dry
B. hot and dry
C. mild and wet
D. hot and wet
Answer:
C
Explanation:
it is the most habitable
The diagram above shows a cell placed in a beaker with salt water. The cell is permeable only to water. What will happen to the cell?
Answer:
It will swell
Explanation:
Since it is only permeable to water, the cell will try and reach homeostasis with it surroundings (it will take in water to decrease the concentration of salt in the cell).
Which of the following is a products of cellular respiration that can be used for photosynthesis
You didn't put the answer choices, but I'm going to assume CO2 because our cells give off CO2 and plants need it in their photosynthesis.
Plzz Help!! Do not do it for the points plz i really need help on this!!!!!!!
Answer:
All alleles on the X chromosome are dominant
Explanation:
This is because the X chromosome is large and contains many more genes than the smaller Y chromosome. In a sex-linked disease, it is usually males who are affected because they have a single copy of X chromosome that carries the mutation.
What is stored in the nucleus?
Answer: The nucleus (plural, nuclei) houses the cell's genetic material, or DNA, and is also the site of synthesis for ribosomes, the cellular machines that assemble proteins. Inside the nucleus, chromatin (DNA wrapped around proteins, described further below) is stored in a gel-like substance called nucleoplasm. hopes this helps pls pls pls give me brainliest.
Explanation:
Answer:
Within the nucleus, DNA molecules, the cell's genetic machinery, are stored, repaired, transcribed and eventually replicated. Around the outside of the nucleus is an envelope consisting of two layers of membrane.
Explanation:
PLs mark me Brainliest.
How will weathering and erosion most likely change the map over a long period of time?
Answer:
The lines near the bottom of the mountain will become perfect circles. There will be fewer lines near the top of the mountain and they will be further apart. ... The lines near the bottom of the mountain will become straighter.
Answer:
i gotchu
Explanation:
weathering and erosion shapes down land and coastlines, so eventually overtime, our maps start to change and look different
how does the earth evlove around the sun while the moon evlolves around the earth with out those two planets colliding
Answer:
This is a rather complicated thing to explain so I'll try my best. To put it in simple term the sun has whats called a SOI (sphere of infleunce) and anything inside of this is effected by the gravity of that planet or sun in this case. The earth is inside of this sphere of influence. The earth has a constant velocity that is making it move away from the sun but since it's in the suns SOI the path in which the earth moves is changed in a way that causes it to spin around the sun. The same thing is happening with the moon. I'm not 100% sure on this but I think the reason the moon does not just fly away towards the sun is because it is closer to earth and is more effected by earths SOI. Hope this cleared things up for you.