Plz help What happens to chromosomes during crossing-over?

1. Sister chromatids are pulled apart by spindle fibers.
2. Sister chromatids separate at the centromere.
3. Homologous chromosomes exchange corresponding segments of DNA.
4. Homologous chromosomes move from one side of the cell to the other.

Answers

Answer 1

Answer:

How does crossing over affect the alleles of a chromosome?

Since the chromosomes are homologous, breaks at corresponding points mean that the segments that are broken off contain corresponding genes, i.e., alleles. ... Crossing over results in recombination of genes found on the same chromosome, called linked genes, that would otherwise always be transmitted together.


Related Questions

can you answer these please:)

Answers

Answer:

11=gravity

12= The earth would move in a straight line infinitely

Explanation:

I dont know first one I think its false though

why most plants cannot survive in deserts?​

Answers

Answer:

maybe beacuse there not enough water and its too hot the sun will dry them up

Explanation:

Answer:

Because the ground is not fertile.

and there is too much of sunlight.

What has been an advantage of producing transgenic plants?

Answers

Answer:

The main advantages of transgenic plants include larger yield, resistance to diseases and pests and capable of growing under stressful conditions, while their main disadvantages include allergic reactions, emergence of super-pests and loss of biodiversity.

If the frequency of the p allele is 63 in the population then what is the frequency of the q allele?
040
0 55
0 37
O 137

Answers

The answer is 37 I’ll comment why if it lets

______ can amplify the effects of temperature by increasing the rate of heat loss by convection.

Answers

Answer:

wind

Explanation:

As the air heats up and becomes less dense, it rises higher into the atmosphere, thereby cooler air takes its place and produces wind (moving air is wind). This wind can produce a positive feedback loop that increases the transfer of heat by both evaporation (i.e., by losing heat through the conversion of water to vapor) and convection (i.e.,  through the movement of air). In consequence, wind created by temperature fluctuation can amplify the effects of temperature. In organisms, winds can also contribute to water loss by increasing the evaporation/transpiration rate.

Is there an unconformity? ___________
2. 5 is a _____________________ ______________.

Answers

Answer:

what is short sightedness?

Part C Firefly luciferase is the enzyme that allows fireflies to illuminate their abdomens. Because this light generation is an ATP-requiring reaction, firefly luciferase can be used to test for the presence of ATP. In this way, luciferase can test for the presence of life. The coupled reactions are 1.2.luciferin+O2ATP⇌⇌oxyluciferin+lightAMP+PPiΔG∘=−31.6 kJ/mol If the overall ΔG∘ of the coupled reaction is -4.80 kJ/mol , what is the equilibrium constant, K, of the first reaction at 6 ∘C ?

Answers

Answer:

K = 9.620 × 10⁻⁶

Explanation:

From the given information:

Temperature T= 6° C

= (273 + 6)K

= 279 K

The correct and well presentation of the reactions are:

1. [tex]Luciferin + O_2[/tex]     ⇆     oxyluciferin + light   ΔG₁°

2. ATP                     ⇄   AMP + PP[tex]_i[/tex]                  ΔG₂°  = -31.6 kJ/mol

The overall  ΔG° = -4.80 kJ/mol

Let's first determine the ΔG₁° for the equation (1)

ΔG° = ΔG₁° + ΔG₂°

- ΔG₁° = - ΔG° + ΔG₂°

ΔG₁° = ΔG° - ΔG₂°

ΔG₁° = ( -4.80 - (-31.6) ) kJ/mol

ΔG₁° = 26.8 kJ/mol

Using the formula:

ΔG° = -RTIn K

[tex]In \ K =\dfrac{-\Delta G^0}{RT} \\ \\ log \ K = -\dfrac{\Delta G^0}{2.303RT}[/tex]

[tex]log \ K = -\dfrac{\Delta G_1^0}{2.303RT} \\ \\ log \ K = -\dfrac{26.8 \times 10^3 \ J/mol}{2.303\times 8.314 \ J/mol/K \times 279 \ K} \\ \\ log \ K =- 5.017[/tex]

K = antilog (-5.017)

K = 9.620 × 10⁻⁶

does somebody know how many correct questions are needed to pass the Biology 1 STAAR/EOC ? Mine is tomorrow help besties ​

Answers

Answer:

I dont really know but I think its 38

Explanation:

What is the function of DNA in a cell?
A regulating the movement of nutrients

B Carrying genetic material

C Providing energy for activities

D reproducing sex cells

Answers

Answer:

The function of DNA in a cell is for Carrying genetic material

What is the function of DNA in a cell?

[tex]{ \bf{ \underbrace{Answer :}}}[/tex]

[tex]\sf\purple{B.\:Carrying \:genetic\: material.}[/tex] ✅

......................................................MORE:- DNA stands for deoxyribonucleic acid.It is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C).DNA is the genetic material that is passed from parent to offspring.......................................................

[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]

In a study published in the journal Nature, scientists studied eight ponds in Florida: four that were populated by a species of fish and four that were not. As they studied the ponds, they noted that the areas around the four fish-populated ponds showed decreased populations of dragonflies and dragonfly larvae, whereas the four without fish showed abnormally large populations of dragonflies and larvae. Dragonflies feed on bees, butterflies, and other pollinators.

Required:
Predict what would happen to the rate of pollination of flowers in a field next to a pond with no tish.

Answers

Answer: the rate of pollination of flower, in a field next to a pond with no fish, will DECREASE.

Explanation:

POLLINATION is defined as the process by which flowering plants, through the aid of external agents such as insects,wind, water and other animals, are able to transfer pollen grains from an anther to a receptive stigma. Insects are the most common pollinators. They visit flowers to obtain nectar and pollen as source of food. Flowers use various features, such as colour and scent, to attract and guide insects to the food source within them. In the process of reaching their source of food, insects bring about pollination.

From the study conducted by scientist in Florida, eight(8) ponds where subjected to the the study. The first four (4) ponds had species of fishes that fed on dragonflies and dragonfly larvae, hence the reason for a decrease in the population of the dragon flies in the area around it. While the remaining four (4) ponds had NO fish and the area around it is populated with dragonflies and dragonfly larvae. This is so because of the absence of fish.

It was then noted that the dragon lies fed of the insect pollinators such as the bees and butterflies. Since these dragonflies and its larvae are abundant in the field which is close to the pond with no fish, they will grossly depend on the insect pollinators as their source of food thereby decreasing the rate of pollination in the field next to the pond with no fish.

If there is water on Mercury, it is likely to be ice at the planet's
poles because

Answers

Answer:

3

Explanation:

i dont even know man just bored

I’m guessing it’s because it would be to cold here for Mercury’s water considering it’s the closest planet to the sun

A tall red flowered plant is crossed with a short white flowered plant.

Answers

Answer:

lol what's this biro..........

Plants are the primary source of energy for
decomposers
predators
consumers
all of the above

Answers

i think it’s all of the above not sure tho

Explain the relationship between energy transfer and cloud formation. How does the rate of energy transfer affect cloud
formation? Choose all that apply.
A. Clouds form when water vapor in the atmosphere cools and loses energy to the surrounding atmosphere, and turns into liquid water
B. The faster that water vapor loses energy to the atmosphere, the faster the cloud forms.
C. Clouds form when water vapor in the atmosphere gains energy from the surrounding atmosphere.
D. The faster that water vapor gains energy from the atmosphere, the faster the cloud forms.

Answers

Answer:

C,D

Explanation:

What does the hardy Weinberg principle relate to?
A) chances of survival of an organism
B) frequency of alleles in a population
C) natural selection in a species
D) causes of evolution among organisms

Answers

the answer is B: frequency of alleles in a population

What would the dna look like if it was made from dna with the following sequences?

GCTTAAC

AND

TTAACGC

Answers

Answer:

Explanation:

This is what it would look like with it's corosponding parts

Which of the following nutrients is organic?
iron
water
sodium
protein

Answers

Answer:

Protein is the answer

Explanation:

Proteins are considered organic molecules because they are made up of carbon atoms with hydrogen, oxygen and nitrogen attached

NEED THIS BY TODAY!! Please.

Answers

Answer:

AACUUG

Explanation:

Question: What Is The RNA Strand For TTGAAC?*Answer: RNA Strand For AACUUGExplanation: Hope It Helps!

A phase when the cell focuses solely
on growing:

Answers

Answer: A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.

Interphase is the longest phase that the cell grows in

4
Select the correct answer.
Why does temperature decrease with higher altitude?
A.
Air is held strongly together by gravity, so there is less heat transfer.
B.
Air density is lower, so there is less heat transfer.
C.
Air density is higher, so there is less heat transfer.
D.
Air pressure is higher, so there is less heat transfer.

Answers

Answer:

air density is lower, so there is less heat transfer

Explanation:

Radiation is absorbed by the ground of Earth and this heats the surroundings along with tropospheric air through conduction and convection process. ... Thus, we can conclude that temperature decrease with higher altitude as air density is lower, so there is less heat transfer.

Answer:

The correct answer would be B.

Air density is lower, so there is less heat transfer.

I got this right on a test. I hope this helps!

Similarities between plant cell,prokaryote cell and eukaryotic cell

Answers

Answer:

In structure, both animal and plant cells are quite similar. Both possess nucleus and plasma membrane, a selectively permeable membrane of the cell. Both animal and plant cells include membrane-bound organelles with their specialized functions.

Purpose
In this assignment, you will use, evaluate, and improve a simulation to highlight human impact on coral
reef ecosystems. Then you will propose and evaluate real-world solutions to reduce the negative effects
of human activity on this ecosystem and its biodiversity.

Answers

Answer:

Explanation:

A coral reef is an environment in which various abiotic (water, sunlight, temperature, salt, waves, and so on) and biotic (aquatic plants, shrimps, fish, corals, and so on) factors combine to maintain the system's homeostasis. A simulation model is a descriptive model that makes future inferences about one system using existing data (or process). A computer-based experiment in which each part of the device contributes to the measurement of the impacts induced by the interaction of unknown inputs is also known as a simulation model. It is possible to determine how changes in water temperature influence the relationship between various types of trophic levels in the coral reef environment, which may be expressed by aquatic plants and fish species, by using a simulation model.

Corals, algae, and fish in coral reefs have a lower survival rate as the pH of the ocean water drops. In acidic ocean water, coral reefs struggle to survive. This is due to the coral's calcium carbonate shell's inability to withstand an acidic environment. Snails, clams, algae, fish, and other animals have calcium carbonate in their skeletons. The death of these animals is caused by increased acidity. As a result, the lower the pH of ocean water, the higher its acidity, and therefore the lower the chance of corals, algae, and fish surviving in the coral reef.

The amount of calcium carbonate in coral reef water is affected by a lower pH value (more acidic). Since coral skeletons are made of calcium carbonate, this has an effect on them. It may be a major issue (since coral reefs are a source of food and tourism), since it would be more difficult for them to calcify or even dissolve. As a result, if 'ocean acidification' occurs as a result of carbon dioxide absorption from the atmosphere, reduced pH may reduce coral reef biodiversity.

The simulation's pH is too low to allow coral reefs to develop. The ocean is affected, and these coral reefs are important for the diversity of marine life because they have a lot of nutrients, which is ideal for small organisms to live in. As a result, if there is a lot of acid in the water, these coral reefs will dissolve and vanish.

I'd raise the ocean's temperature and lower the pH percentage so that users can see how human activity affects the ocean. Human activity causes contamination of the air, which causes CO2, which causes more of the CO2 to be consumed by the seas, raising acidity, which contributes to an increase in temperature and the dissolution of coral reefs.

Add mutations, edit genes, pick factors such as wolves, food, climate (arctic or dessert), and monitor population or pedigree chart were some of the variables I had control over in the simulation.

The impact on the pH of Earth’s oceans can be reduced by lowering the carbon dioxide in the air, and reducing the plastics that goes into the oceans.

Government-approved projects will be needed to temporarily limit fishing in the region. There will be a dead end in seafood resources from the river as a result of the consequences.

oh skunt bai, me that gyall tight pattacake

Answers

Answer:what?

Explanation:


What is the answer to this question

Answers

Answer:

3 I think I hope its right

When a pregnant woman ingests toxins such as alcohol and

nicotine, the embryo is put at risk because these toxins can

1) diffuse from the mother's blood into the embryo's

blood within the placenta

2) enter the embryo when it eats

3) transfer to the embryo since the mother's blood

normally mixes with the embryo's blood m the placenta

4) enter the uterus through the mother's navel

Answers

the answer for this question is 1

The flowers bloom.
Hello there

Answers

Answer:

hello hope you are fine

please mark me as brain list ☺️

A certain plant species has an adaptation that makes it contain a bad-tasting chemical. Which is the MOST LIKELY result of this adaptation? The plant is able to live in many different environments. Animals are more likely to eat the plant. The chemical aids in photosynthesis. • Animals are less likely to eat the plant.​

Answers

Answer:

Animals are less likely to eat the plant

Explanation:

It tastes bad so they wont want to eat it again

Animals are less likely to eat the plant and It tastes bad so they wont want to eat it again.

What are Adaptation?

The process by which organisms adapt to their environment in order to increase their chances of surviving in that environment is known as evolutionary adaptation, or simply adaptation.

The biological process through which organisms adapt to brand-new surroundings or alterations in their current environments is known as adaptation.

Wallace and Darwin both went beyond basic adaptation when formulating the notion of evolution by natural selection by describing how organisms adapt and evolve.

Therefore, Animals are less likely to eat the plant and It tastes bad so they wont want to eat it again.

To learn more about Adaptation, refer to the link:

https://brainly.com/question/12534888

#SPJ2

Identifying Cloud Types
Which type of cloud is shown in the image?
O cirrus
O cumulus
O stratus
O fog
The answer is c
Is stratus

Answers

Answer:

[tex] \huge\red{\boxed{\mathfrak{Hello}}}[/tex]

Huh? You have already given the answer.......Anyways, the attached picture is an example for a stratus cloud ☁️.

Answer:

c :)

Explanation:

What do you notice about the products of cellular respiration compared to the reactants of photosynthesis

Answers

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.

PLS HELP ME

no links ​

Answers

Answer:

0% RR 100%Rr 0% rr is the answer

Answer:

RR is the and sorry if it is incorrect

Other Questions
Put the following equation in slope-intercept form: y5=7/4(x-1) A cyclindrical water tank carries a volume of 150 when it is full.the watertank has abase surface wit diameter of1l 140,what is the height of water tank? Find the surface area of the cone. Round answer to the nearest tenth.* 8. What is the density of an object with a mass of 290.5 g and volume of 83 cm 3? School X has eight more points than school YSchool X has three times as many points as school YHow many points does each school have? Find the perimeter X(-2,1) Y(4,3) Z(5,-1) I WILL GIVE BRAINLIEST :DWhich NUMBERS are NOT expressed in scientific notation?A. 3.5 x 10-4B. 58.9 x 102C. 9.3 x 106D. 0.75 X 10-3E. 6.47 x 1000F. 1.88 x 104 Find the volume of a right circular cone that has a height of 19.1 cm and a base with a radius of 13.6 cm. Round your answer to the nearest tenth of a cubic centimeter. Please help me with this What is the media's most important role in a democracy Please answer this for me correctly. There are two questions. THANK YOU!! Who was the 4th president of U.S. A=(2,3) B=(4,5)Find vector equation of staraight line parallel to vector B and passing through point A hence obtain cartesian equation please help this is very important i will give you brain thing if its correct Wilson cut open a packing box that was shaped like arectangular prism to see the net. What shapes did Wilsonsee? How many degrees Fahrenheit is -20C? Cuando estoy de viaje, me gusta _________.pasear por las callesmarearsetomar fotosdisfrutar la nueva comida You throw a tennis ball straight up. Air resistance can be neglected.(a) The maximum height above your hand that the ball reaches is H. At what speed does the ball leave your hand? (b) What is the speed of the ball when it is a height H/2 above your hand? Express your answer as a fraction of the speed at which it left your hand. (c) At what height above your hand is the speed of the ball half as great as when it left your hand? Express your answer in terms of H. Fund Net Asset Value Offering Price Change Capital $9.01 $9.59 - .02 Common $6.37 $6.64 - .04 Corporate $7.72 $8.44 .03 A customer who placed an order to buy 200 shares of Capital Fund this day will pay: A $1,802 B $1,802 plus a commission C $1,918 D $1,918 plus a commission Review 4 cousins share 3 pies