Answers
Explanation:
Meiosis makes genetic variety possible. It makes sperm & egg cells called gametes. Each gamete has 23 chromosomes. To make a diploid cell two gametes (sperm & cell) come together.
During prophase 1 the chromosomes pair up with their homologous pairs so they can transfer their genetic information and exchange it between each other. It makes recombinant chromosomes that influence the genetic diversity between the same people.
Now they are in metaphase 1, the chromosomes are in pairs in the middle of the cell. In anaphase 1, the chromosomes are pulled away by the spindle fibers. Then in telophase 1, there are two formed nuclei. Cytokinesis 1 then splits the cytoplasm.
Now they are in meiosis 2. During prophase 2, there are chromosomes and the spindles are starting to form again without crossing over like in prophase 1. In metaphase 2, chromosomes are going to line up in the middle in both cells unlike during metaphase 1 where the chromosomes were only in pairs. In anaphase 2, only the chromatids are being pulled away by the spindle fibers. Next in telophase 2 the nuclei reform and the 2 cells are each going to divide into 4 cells. Finally, cytokinesis completely splits the cytoplasm.
Keeping in mind that each sex only produces one type of gamete cell (sperm or eggs), and of the independent assortment and crossing over of chromosomes, the end result will be diversity.
Related Questions
Can someone explain the Punnett square ?
Answers
Answer:
so in the punnet square, you hvae the 4 squares inside the big on. on top of the square, you have 2 letters, representing the dominant and the repressed genes. On one side, typically the left, you have another two letters, again genes. to get the gene types to fill in your squares, you take the first letter of the top set and the first letter of the side set. for this example, we are going to use Bb(top) and BB(side). you would take the B from the top, and you would pu it with the B from the side. in the top left square, you should have BB. next, you go and take that same top B and do it with the second letter of the side, B again. this again gives you BB. next, you take the second letter of the top, b, and you join it with B. in the top right square, you would write or type in Bb. Even though the b was on top, it is after the B because in this cause, it is not the dominant gene. when you do the second top and side letters together, you again get Bb.
Explanation:
the main points.
in this example, i used B to be the dominant gene and b to be the repressed/ submissive gene. you always put the dominant gene letter before the repressedmake sure you fill the squares in properly. in this one, you should have 3 BB and 1 Bb. this shows that the gene set BB is going to showwhen you fill in the squares, the first top letter and the first side letter fill in the top left square.the first top letter and the second side letter go left bottom.second top letter and first side letter go in right top.second top and second side go in right bottom.always place the dominant gene first in the punnet square.add me and message me if you need more help. we can also zoom to figure it out.
in what cells, do the cell cycle occur?
Answers
Answer:
In eukaryotic cells, or cells with a nucleus may this help u buddy
please help i will give brainlist
Answers
Answer:
I think it's c hope I hope I helped if not I'm sorry:(
I think it is
NEED HELP WITH THESE 4 QUESTIONS WILL GIVE BRAINLIST!!!
1.What were some characteristics that the finches developed to give them an advantage in surviving?
2.How do you think that the one species of finch evolved into many different species, each with its own advantages?
3. In what ways do these advantages help the finches to survive and reproduce?
4. What might have happened if the finches didn't evolve into many different species?
Answers
Answer:
1. Because the drought reduced the number of seeds and finches with bigger beaks were able to eat the larger and harder seeds so more of them survived.
2. Summary: Changes in the size and form of the beak have enabled different species to utilize different food resources such as insects, seeds, nectar from cactus flowers as well as blood from iguanas, all driven by Darwinian selection
3. Medium ground finches with larger beaks could take advantage of alternate food
4. three species of Darwin's tree finches have been known to inhabit Floreana but no birds singing that song on Floreana have been heard in many years.
Explanation:
if an object is 3 AU from the sun, it is
Answers
Answer:
That probably refers to asteroids.
Explanation:
There is a large belt of asteroids between the orbits of Mars and Jupiter.
please help me.
the options are:
potential energy
chemical energy
gravitational PE
electrical energy
kinetic energy
nuclear energy
thermal energy
radiant energy
Answers
Answer: stored E = potential E. E to move = kinetic E. E due to height = gravitational PE. Electron = electrical E. Food, fuel = chemical E. Heat = thermal E. EM radiation = radiant E. Nucleus = nuclear E
Explanation: self-explanatory
Which of these is thickes layer of earth
Answers
Answer: core
Explanation:
The core is the thickest layer of the Earth, and the crust is relatively thin, compared to the other layers.
9. The Sun's outward pressure of radiation is balanced by an inward pressure provided by
gravity
O fusion
fission
oxidation
Answers
What is a similarity and a difference between the stars Rigel & Betelgeuse?
Answers
Stars as large as Betelgeuse are very unusual. In contrast, Rigel, the bright, bluish-white star at the southwest corner of Orion, is smaller and much hotter than Betelgeuse. Although Rigel is smaller than Betelgeuse, it is still a super-giant star compared to the sun.
hope this helps ^^
Answer:
Stars as large as Betelgeuse are very unusual. In contrast, Rigel, the bright, bluish-white star at the southwest corner of Orion, is smaller and much hotter than Betelgeuse. Although Rigel is smaller than Betelgeuse, it is still a super giant star compared to the sun
i hope this helps~
A group of students wants to investigate the effect of the concentration of salt in salt solution (2, 5, 10, 15%) on the growth of the mint plant after three weeks of planting. Write a procedure helping the students to carry out their investigation.
Answers
Answer:cccccccccccccccccccccccc
Explanationccccc
What is the first step in Respiration called?
Glycolosis
Kreb Cycle
Electron Transport Chain
Light Reaction
Dark Reaction
All the above.
Answers
The first step in Cellular Respiration is called Glycolosis, it takes place inside the cytoplasm. Within this step, enzymes split apart a molecule of some glucose into two molecules of pyruvate, which releases some energy that is transferred to ATP. (Adenosine triphosphate)
Therefore, your answer is A.
What is a recessive allele?
Answers
Answer:
A type of allele that when present on its own will not affect the individual. Two copies of the allele need to be present for the phenotype to be expressed.
Explanation:
Answer:
A recessive allele is a variety of genetic code that does not create a phenotype if a dominant allele is present. An allele is a specific variation of a gene, or specific segment of DNA. Different alleles produce slightly different proteins, which function in different ways.
Explanation:
Hope this helps
have a great day!
Light-dependent and light-independent reactions occur at the same time. True or False
Answers
true because they are driven by the ATP made by the light-dependent reactions. Both systems shut down in the dark. The light-independent reactions can last a little longer if there is ATP remaining in the chloroplast.
What is a constant?
O a variable
a number that stands alone with no variable
O the number in front of the variable
O two terms that look exactly the same
need help please
Answers
Answer:
a number that stands alone with no variable
Hope this helps!
Which of the following statements describes the relationship between DNA and genes?
a, Genes and phosphates make up the backbone of DNA.
b, DNA and genes are passed on from offspring to parents.
c, Genes are segments of DNA
d, DNA is found in cells, whereas genes are outside of cells.
Answers
Answer:
DNA and gesnes and a great time at the end result is a great day to be a great
Explanation:
cells outside and from the bottom of the year and a half years of age and the other day and I have a great day to be a great day to be a great day to be a great day for me and I am a very happy to see the new album and a great
The statement which best describes the relationship between DNA and genes is that Genes are segments of DNA. Thus, the correct option for this question is C.
What is DNA?DNA stands for deoxyribonucleic acid. It may be defined as a type of molecule inside cells that contains the genetic information responsible for the development and function of an organism. These molecules allow this information to be passed from one generation to the next.
DNA is responsible for building and maintaining your human structure. While Genes are segments of your DNA, which give you physical characteristics that make you unique. Together, your body has a complete instruction manual that tells your cells how to behave.
Therefore, the statement which best describes the relationship between DNA and genes is that Genes are segments of DNA. Thus, the correct option for this question is C.
To learn more about DNA and genes, refer to the link:
https://brainly.com/question/28406985
#SPJ6
Which blood component fights and destroys disease-causing bacteria and
viruses?
Answers
Answer:
white cells
Explanation:
What is osmoregulation?
Answers
Answer:
adalah penghijauwan kota
Organisms in aquatic and terrestrial environments must maintain the right concentration of solutes and amount of water in their body fluids; this involves excretion (getting rid of metabolic nitrogen wastes and other substances such as hormones that would be toxic if allowed to accumulate in the blood) through organs such as the skin and the kidneys.
Which of the following would most likely be reduced when combined with Al(s)?
Will be giving brainliest
Answers
Answer:
A
g
+
- oxidising agent
K
- reducing agent
C
l
2
- oxidising agent
Explanation:
A
g
+
- oxidising agent (most likely form Ag by gaining an electron)
K
- reducing agent (most likely form
K
+
by losing an electron)
C
l
2
- oxidising agent (most likely to form 2
C
l
−
by gaining electrons)
This is based on what is likely, not so much that the above are known to be oxidising or reducing agents.
The most likely option to be reduced when combined with Al(s) is Fe (iron). Therefore option C is correct.
Reduction refers to the gain of electrons by a chemical species. In this case, we are considering the reduction of ions when combined with solid aluminum (Al(s)).
Aluminum (Al) is more reactive than iron (Fe) in terms of its electrochemical properties. When aluminum reacts with certain metal ions, it tends to displace those ions and undergo oxidation itself. This process is known as a displacement or redox reaction.
Fe (iron) is less reactive than aluminum and can be displaced by aluminum in certain redox reactions. Therefore, it is the most likely option to be reduced when combined with Al(s).
Know more about redox reactions:
https://brainly.com/question/13293425
#SPJ4
MULTIPLE CHOICE QUESTION
Why do scientists think that cuttlefish
have the biggest brain to body ratio of all
invertebrates (animals without a spine)?
Answers
Answer:
Due to its high intelligence.
Explanation:
Scientists think that cuttlefish have the biggest brain to body ratio of all invertebrates that allows it to sense sight, smell, and sound that comes to it in the form of pressure waves. Due to this big brain, cuttlefish are very intelligent so due to its intelligence the scientists thinks that cuttlefish has the biggest brain as compared to other big vertebrates such as octopus.
Question 1 (4 points)
(04.01 LC)
Rocks created from the cooling of magma or lava are called (4 points)
Answers
Answer:
igneous rocks
Explanation:
brainliest plz?
Answer:
the answer is igneous rocks
Explanation:
I did the exact same test because I am also from the same school (FLVS)
Which of the following provides the best summary of the process of natural
selection?
A. Populations become better adapted to their environment.
B. Individuals pass on their best traits to their offspring.
C. Individuals always change in response to their environment.
D. Population sizes increase with every generation.
SUBMI
Answers
Answer:
c
Explanation:
Traits of organisms are a direct result of two factors: 1) the genetic material present in previous generations and 2) the type of reproduction, sexual or asexual. Which of the following is true of cellular division? *
a. Meiosis is cellular division for and sexual reproduction.
b. Asexual reproduction requires mitosis for cellular division.
c. Mitosis is cellular division for asexual and sexual reproduction.
d. Sexual reproduction requires mitosis for cellular division.
Answers
Answer:
it A
Explanation:
Answer:
Its A
Explanation:
Lol bc someone else put it!! And also I got the answer right!
Lloyds lab partner is looking down into a test tube while he hears the contents by using a flame. Which action should Lloyd recommend to his partner if heating must continue?
Answers
Answer:
To stop looking throught the test tube. lol
Explanation:
Arrange the levels of ecological organizations from smallest to largest
population
organism
community
ecosystem
Answers
What absorbs water in the digestive system
Answers
Your answer is Small Intestine.
Your small intestine makes digestive juice, which mixes with bile and pancreatic juice to complete the breakdown of proteins, carbohydrates, and fats. Bacteria in your small intestine make some of the enzymes you need to digest carbohydrates. Your small intestine moves water from your bloodstream into your GI tract to help break down food. Your small intestine also absorbs water with other nutrients.
Answer: Small intestine
Either you put small intestine in the wrong place, or you're able to put the same one for multiple questions
Does anyone know the answer?
Answers
Answer:
Fungi
Explanation:
Anyone know I’m confused
Answers
Answer:
the correct option is
A. All plant cells have at least one vacuole but only some animal cells have vacuole
Answer: C
Explanation:
All have them, although they vary in size and function
Help me I’ll give 50 points helppp!
Answers
Answer:
2 Refraction, Transition/bouncing?
7. Opaque, absorbs
Explanation:
A poodle and a Labrador can mate and have a offspring.
What is it about these dogs that is true?
(A) They have different scientific names.
(B) They belong to the domain Archaea.
(C) They are members of the same species.
(D) They are different genus
Answers
Answer:
The answer is C they are members of the same species.
A) it isn't correct because they are both the same species which means the same scientific name
B) wasn't even close to being correct, Archaea is part of Prokaryotes which doesn't have a nucleus and they reproduce asexually meaning only one which is making their own offspring that we call clones
D) isn't correct because genus is the same as species
Hope this is correct :)
Answer: The answer is C they are members of the same species.
Explanation:
Can someone please helpppppo I’ll mark the brainliest
Answers
Answer:
C [the third one btw]
Explanation:
He believed that evolution gradually [slowly] happened over time.
Hope this helps :D Have a great day