The diagram below represents some stages in the life cycle of humans. The numbers in the diagram represent various processes in the cycle.
Identify the process(es) represented by 1 and 2. State how these processes (1 and 2) affect the amount of genetic information provided by a parent to its offspring.
Answers
Answer:
The diagram below represents some stages in the life cycle of humans. The numbers in the diagram represent various processes in the cycle.
1. "The processes reduce the amount of genetic information from each parent by half."
During sexual reproduction, a specialized cell division process called meiosis occurs. Meiosis involves two consecutive divisions, resulting in the production of four haploid cells (gametes) from a diploid cell.
2. "Each parent only contributes half of the genetic information that is contained in his or her own cells."
As mentioned earlier, meiosis results in the formation of haploid gametes. Each gamete contains only one set of chromosomes, which is half the number found in the parent's diploid cells.
During meiosis, homologous chromosomes pair up, and genetic recombination occurs between them, shuffling and exchanging genetic information.
3. "Each egg (or each sperm) will carry only half of the genetic information contained in the parent's body cells."
This statement reiterates that gametes (eggs or sperm) are haploid cells containing only one set of chromosomes. When a cell undergoes meiosis to produce gametes, it divides twice, resulting in four cells with half the genetic information of the parent's body cells.
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Related Questions
Why did the accepted scientific theory of the solar system change from a geocentric model with Earth in the center to a heliocentric model with the Sun in the center?
Question 2 options:
A: Because over time the Sun's position changed
B: Because over time the Earth's position changed
C: New evidence and observations changed our understanding of the solar system
D: New planets formed in between the Sun and Earth
Answers
Hamsters are long haired if they have the genotype LL or Ll and they are short haired if they have the genotype ll. A long haired hamster is mated with a short haired hamster. Half of the offspring are long haired and half are short haired. This allows us to conclude that the long-haired parent hamster
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Answer:
Has the genotype Ll (heterozygous)
Explanation:
Here are the two punnett squares I did, hope this helps :)
please help me with this
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Answer:
Question 13 : Ureter
Question 14 : Ovulation
Explanation:
..........................
Answer:
the answer is ovulation
What is the relationship between aquifers and porosity?
Answers
Answer:
The pore space of an aquifer is the spaces or voids between the solid material. The porosity of the aquifer is the volume of void space to the total volume, typically expressed as a percentage.
What produces gene flow?
ws
O mating between populations
O mutation
O geographical isolation
O speciation
Answers
Answer:
O mutation
Explanation:
please mark this answer as brainliest
Which point on the graph represents carrying capacity when full?
A.
B.
C.
Answers
among cattle having horns is a recessive trait cattle without horns which are called polled cattle are common suppose a horned male mates with a polled female their offspring are polled on maturity two cattle on the f1 generation mated their offspring are a mix of polled and horned cattle
Answers
Answer:
Correct
Explanation:
It’s always more likely that the dominant gene will show than the recessive gene.
What does the word photosynthesis mean?
Light + energy
Energy + mass
Light + put together
Energy + sugar
Answers
Answer:
Hey mate.....
Explanation:
This is ur answer.....
--> Light + Put togetherHope it helps!
Brainliest pls......
Follow me! ;)
cion
Fully explain how speciation occurred on the
Galapagos Islands using 3-4 complete
sentences.
PLEASE HELPP!!
Answers
answers to ten and tweleve please giving brainlist
Answers
Answer:
A and D
Explanation:
the Calvin cycle in photosynthesis doesn't need sunlight and this worksheet seems to focus on energy from the sun and how it is used in plants
A big, powerful male gorilla is much more likely than a smaller, weaker
gorilla to become the population's silverback, the pack's leader who mates
far more than the other males of the group. The pack leader will, therefore,
father more offspring, who share half of his genes, and are thus likely to also
grow bigger and stronger like their father. Over time, the genes for bigger
size will increase in frequency in the population, and the population will, as a
result, grow larger on average.
Determine the Mechanism of Evolution observed in the Scenario:
Answers
Answer:
9it is not evolution but it is actually a dominant trait being passed down
Explanation:
The original base sequence of DNA is : CAG TTA CCA. If the amino acid sequence that results from translation of this DNA base sequence is: valine-tyrosine-glycine, what mutation occurred in the DNA? Explain
A. An addition mutation occurred
B. A deletion mutation occurred
C. A substitution mutation occurred
D. A mutation did not occur.
Answers
C
I think substitution, because the original translation of the original base sequence is glutamine-leucine-proline. The base sequence for valine-tyrosine-glycine is: GT# TA# GG# . of course the last codon is unclear, but the first two gives us enough to know too much change happened for a simple addition or deletion mutation. The bases were completely switched out, therefore it is a substitution mutation. I attached a codon chart.
8. In a population of beetles, there is a gene for color with two codominant alleles. The allele R leads to red beetles and the allele B leads to blue beetles. Heterozygous beetles are red and blue spotted. A heterozygous beetle mates with a red beetle. What is are the genotypic and phenotypic frequencies of their offspring? Please show all of your work. (2)
Answers
Answer:
The genotypic frequency = 1:1
The phenotypic frequency = 1:1
Explanation:
Given that:
The allele → R = Red beetles
The allele → B = Blue beetles
Since the gene color shows a codominant allele
The Red Beetle = RR
The blue beetles will be = BB
The heterozygous beetle will be = RB
∴
The punnet square showing the crossing of RB × RR is:
R B
R RR RB
R RR RB
The result shows that we have two red beetles and two heterozygous beetles.
Hence;
The genotypic frequency = 1:1
The phenotypic frequency = 1:1
HELPP
Which of the following is a correct statement about the water molecule?
The hydrogen end is more negative than the oxygen end because hydrogen pulls the shared electrons towards its end of the molecule.
The oxygen end is more negative than the hydrogen end because oxygen pulls the shared electrons towards its end of the molecule.
There is no overall chrage on either end of the water molecule.
Answers
Answer:
it should be B
Explanation:
I hope this helps
The higher the hydrogen ion concentration, the _______ the pH.
please help answer i need to turn this in asap.
Answers
Answer:
here is your answer : )
Explanation:
The answer is lower the pH
hope you like the answer : )
10.) What hormone is released due to the rising level of estrogen in the bloodstream?
Answers
Answer:
10.) What hormone is released due to the rising level of estrogen in the bloodstream?
A) When the level of estrogen is sufficiently high, it produces a sudden release of LH, usually around day thirteen of the cycle.
-TheUnknownScientist
Answer:
LH hormone is released due to the rising level of estrogen in the bloodstream.
Can someone please help me with this? I can’t figure it out.
Please only answer if you know it.
Thank you in advance.
Also it does not appear that clear.
Answers
Answer:
1. B, C, F
2. Outside air, nose, lungs, bloodstream, cell
3. Delivery truck, raw material, factory, battery, poison
I hope this helps! Have a great night!
What two nations were at the center of the Space Race in the 1950's Australia and Russia .China and United States .United States and Russia .
Russia and China
Answers
Answer:The Space Race was a 20th-century competition between two Cold War adversaries, the Soviet Union (USSR) and the United States (US), to achieve superior spaceflight capability.
Explanation:
i looked it up
The two nations that were at the center of the Space Race in the 1950s should be considered Russia and China.
What is Space Race?The Space Race was the competition held in 20the century that lies between the two Cold War adversaries i.e. soviet union and the united stated for accomplishing the superior spaceflight capability.
Also, it has its origin in the ballistic missile that based on the nuclear arms race.
Learn more about the nation here: https://brainly.com/question/365702?referrer=searchResults
HELPPP PLS i need helppp
Answers
Answer:
is this a genetic diagram u need to be filled out or nah?
Which of the following is NOT a way to prevent the spread of infectious disease?
A. Get vacinated
B. Rinse dirty cutting boards with cold water
C.Don't share personal items
D.Wash your hands
Answers
Answer: I think B
Explanation:
????????????????????????????????????????? What is the answer to number 2 and 3 I’m really confused
Answers
Answer:
2. High
3. Low
Explanation:
4. Sinking air compresses and heats. As air sinks, air pressure at the surface is raised.
3. As air rises, air pressure at the surface is lowered
In the logistic growth model, as a population approaches the carrying capacity, what happens to its growth rate?
A
becomes exponential
B
doubles
C
increases
D
slows to zero
Answers
In the logistic growth model, as a population approaches the carrying capacity, the growth rate of the population will slow down to zero. Thus, the correct option is D.
What is Logistic growth model?The logistic growth model is a parameter which represents the rate at which the population would grow if it were unencumbered by the environmental degradation. A second parameter, that is K, represents the carrying capacity of the system of species which are being studied.
In logistic growth, a population's per capita growth rate gets smaller and smaller as the population size when it approaches a maximum imposed by the limited resources in the environment, known as the carrying capacity (K). Exponential growth model produces a J-shaped curve, while logistic growth produces an S-shaped curve.
Therefore, the correct option is D.
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what do endocrine glands use as Messengers?
A. Blood
B. Hormones
C. Target Organs
D. Zygote
Answers
Answer:
b. hormones
Explanation:
"The endocrine system is made up of glands that make hormones. Hormones are the body's chemical messengers. They carry information and instructions from one set of cells to another"
Answer:
b have a good day
Explanation:
A patient in the hospital is undergoing testing. The patient's brain is sending electrical signals to motor neurons, but the muscles are not moving in response. What could be a likely cause for this? Explain your answer using complete sentences.
Answers
Answer:
Damage to interneurons.
Explanation:
The main cause of this situation is the damage occurs to the interneurons which is responsible for sending of instructions. The motor neurons can't receive the instruction from the central nervous system which results no movement of muscles. There must be damaged occur to interneurons because these neurons are responsible for sending instructions from central nervous system so if the information can be passed to the motor neurons so no movement occurs in the muscles.
How are sexual reproduction and asexual reproduction different?
Group of answer choices
A. Asexual reproduction only occurs in multicellular organisms, but sexual reproduction only occurs in unicellular organisms
B. Asexual reproduction produces offspring identical to the parents, but sexual reproduction produces offspring with traits from both parents.
C. Sexual reproduction produces offspring identical to the parents, but asexual reproduction produces offspring with traits from both parents.
D. Sexual reproduction only occurs in multicellular organisms, but asexual reproduction only occurs in unicellular organisms.
Answers
Answer:
B
Explanation:
In asexual reproduction, the offspring has identical genes/traits to the one of its parent.
In sexual reproduction, there's a combination of the genes/traits from both parents.
The sea cools down faster than the land.
A. True
B. False
Answers
Answer:
false the land cools faster
The movement of the Earth around its own axis is called _____.
A. extension
B. revolution
C. rotation
Choose the correct answer.''
Answers
Answer:
rotation
Explanation:
Earth spins around its axis, just as a top spins around its spindle. This spinning movement is called Earth's rotation. At the same time that the Earth spins on its axis, it also orbits, or revolves around the Sun. This movement is called revolution.
answer: rotation
7. How does distance affect the strength of an electric force?
A. Electric forces that are closer together are weaker.
B. Electric forces that are closer together are stronger.
O C. Electric forces have the same strength regardless of distance.
O D. Electric forces create their own strength depending on their charge.
Answers
Explanation: Increasing the separation distance between objects decreases the force of attraction or repulsion between the objects.
why is one mutation not enough to result in cancer
Answers
Answer:
A single mutation is unlikely to result in cancer. Cancer is usually caused by a series of mutations that accumulate throughout the course of a person's life. As a result, cancer is more common in older adults. They've seen more chances for mutations to accumulate.
Explanation:
If a pet has to survive without your care, how would its diet change? Write your ideas on the lines below. Read about how organisms get food and energy in their environment
Answers
Answer:
rather than consuming "pet food" that contains all proper nutrients required your pet would being to scavenge for food wherever they could find it. Survival instincts would kick in and they would eat whatever they could find. Depending on food availability, loss of muscle mass is a possibility.
Explanation:
If my pet is to survive without me, its diet will change. First of all, he will not get food, so how is it possible for a living being to survive without food. It will get skinny and starve to death after a few days.
What is Diet?Diet is defined as the sum of food that is consumed by a person or other organism. The term diet refers to the use of a specific intake of nutrition for health or weight-management reasons. Humans are omnivores so, every culture and every individual has some food preferences or some food taboos.
It is essential for good health and nutrition protects you from many chronic non-communicable diseases like heart disease, diabetes and cancer. Eating a variety of foods and consuming less salt, sugar, and saturated and industrially produced trans-fats are important for a healthy diet.
Thus, if my pet is to survive without me, its diet will change. First of all, he will not get food, so how is it possible for a living being to survive without food. It will get skinny and starve to death after a few days.
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