Morgan crossed true breeding red eye (W+), Long leg (SL+) females with true breeding white eye (w), short leg (sl) males. F1 females from this cross were then backcrossed to true breeding white eye (w), short leg (sl) males.
From this cross the following flies were collected:
348 white eye (w), short leg (sl) flies
356 red eye (W+), Long Leg (SL+) flies
68 white eye (w), Long Leg (SL+) flies
55 red eye (W+), short leg (sl) flies
How far apart are the red eye and long leg genes on the X chromosome? (Display your answer in centimorgans, to 2 decimal places.

Answers

Answer 1

Answer:

The F1 parents is : W+ SL+/ w sl

The genetic distance is calculated by the(recombinat/total) × 100 = {(68+55) /(68+55+348+356) }×100= (133/837) ×100= 15.89 cM.

Here recombinat are lower in number and parental are greater in number.

15. 89 is the right answer.


Related Questions

as a human population grows, what happens to our natural- resources requirement

Answers

Answer:

Need for natural resources increase

Explanation:

Anaerobic respiration happens in muscle cells and yeast cells.
The equation describes anaerobic respiration in muscle cells.
glucose ---> lactic acid
How can you tell from the equation that this process is anaerobic?
would the answer just be no co2 is produced?

Answers

Answer:

Am I think Co 2 will not be released but rather Glucose will be released

Explanation:

This is because

C6H12O6>2C5H5OH+2Co2 + Energy

there fore glucose is produced

From the equation "glucose → lactic acid," we can infer that the process is anaerobic. One way to determine this is by the absence of carbon dioxide (CO2) in the equation.

Glucose is entirely oxidized to create carbon dioxide, water, and energy during aerobic respiration, which takes place in the presence of oxygen.

Yet, in anaerobic respiration, the lack of oxygen causes an incomplete breakdown of glucose, producing additional byproducts such lactic acid as a result.

Muscle cells have the ability to transition to anaerobic respiration in order to satisfy their energy needs when there is insufficient oxygen.

Muscle cells have the ability to engage in anaerobic respiration, which produces ATP (adenosine triphosphate), the cellular energy currency, by partly metabolizing glucose, during hard exercise or when oxygen supply is constrained.

During anaerobic respiration, lactic acid builds up in muscle cells, which can lead to exhaustion and pain.

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can someone write me a small introduction about reflexes​

Answers

reflex is an involuntary or automatic, action that your body does in response to something — without you even having to think about it

reflex action often involves a very simple nervous pathway called a reflex arc. A reflex arc starts off with receptors being excited. They then send signals along a sensory neuron to your spinal cord, where the signals are passed on to a motor neuron

A summary of what grade 10 learn in biology ​

Answers

Answer:

cells, energy and transport, reproduction and cell division, classical genetics, molecular genetics, evolution, human body systems, ecology.  

Explanation:

I looked this up and i have a older sister in grade 10, so i'm 100% sure this is right.

Identify the terms described by selecting the correct word from the drop down menu

Anything that has mass and take up space

Atom
Element
Matter

The part of earth in which life exists including land water and air

Thermosphere
Biosphere
Exosphere

Answers

The answers are
1. Matter
2. Biosphere

Answer:

1. Matter

2. Biosphere

Explanation:

-. What are the two steps involved in the creation of proteins? Define
each. Which step is the job of the ribosomes?

Answers

Answer:

Explanation:

Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. In eukaryotic cells, transcription takes place in the nucleus.

I hope this helps! <3

(googles words, not mine)

What is the main cause of an aurora?Arrange the inner layers of the Sun in order starting with the innermost layer.

Answers

Answer:

i.Core:The center of the Sun where all the Sun's energy is produced.

ii.Radiative Zone:Tiles Energy produced by nuclear reactions in the core travels to this zone through radiation. 

iii.Convection Zone:In this zone, hotter gases from the base travel to the top and  cooler gases sink to the bottom due to the temperature difference.

iv.Photosphere:This zone is visible from Earth. Sequence

When charged particles from the sun strike atoms in Earth's atmosphere, they cause electrons in the atoms to move to a higher-energy state. When the electrons drop back to a lower energy state, they release a photon: light. This process creates the beautiful aurora, or northern lights. ~Earthsky

Answer:

hiii

Explanation:

is b

webbed feet to help with swimming is it physical or
behavior adaptation ​

Answers

Answer:

It is a physical adaptation

Explanation:

Webbed feet does not change the way the animal acts but it had to adapt webbed feet physically to survive in its habitat/surroundings

Identify the remaining processes and components of the carbon cycle. organisms release CO2 atmospheric CO2 plants use CO2 combustion fossil fuels form

Answers

Answer:

Carbon dioxide (CO2) is an important component in atmosphere and Carbon cycles allows movement of carbon dioxide from the atmosphere into living things and from living things to atmosphere again.

There are four main processes included in carbon cycle that is photosynthesis, decomposition, respiration and combustion.

In respiration, living organism such as animals and humans intake oxygen and releases CO2 in atmosphere.

In the process of photosynthesis, plants take CO2 from atmosphere and convert it into oxygen (O2) in the presence of sunlight and water.

In Decompoition, the bacteria present in soil decomposes dead matter by  breaking down into simpler organic or inorganic matter such as water,  carbon dioxide, and mineral salt. The nutrient cycle then recycle the carbon dioxide and send back to teh atmosphere.

In combustion, the burning of fossil fuel in cars and industries releases carbon dioxide back into the atmosphere.

So, the components of carbon cycel include atmosphere, terrestial biosphere, ocean ( dissolved inorganic carbon), and  sediments ( fossil fuels).

.

Answer:

Here's what I got for this one

Explanation:

Hope it helps!

what is the importance of reflex actions?

Answers

Explanation:

to minimize any damage to the body from potential harmful conditions

An involuntary motor response to a sensory stimulus is known as reflex.Reflexes perform many types of jobs for our central nervous sustem.such as:

they protect us from danger.they help us move our body.they help us to see etc..

HOPE THIS HELP YOU..

IF U FOUND THIS HELPFUL THEN MARK IT AS BRAINLIEST..

THANK YOU

Which characteristics do temperate Marine and temperate Continental climates have in common

Answers

Options are not provided in the question. The complete question is:

Which characteristics do temperate marine and temperate continental climates have in common? Check all that apply.

A.mild winters

B. hot summers

C. many tall trees

D. moderate amount of precipitation

E. two seasons with temperature differences

Answer:

D. moderate amount of precipitation

E. two seasons with temperature differences

Explanation:

The temperate marine climate is generally the climate of west coasts in higher middle latitudes of continents.

Temperate continental climates also known as microthermal climates are located away from the oceans.

Though the location of both the climates is different but some of the characteristics are similar that include are modertae amount of precipitation and two seasons with temperature differences.

Both the climates have moderate rainfall across the year ( modertae amount of precipitation) and mild to warm summers and cool to cold winters.

Hence, the correct option is D and E.

Answer:

Answer is D on egde!!

Explanation:

The first step in the metabolism of triacylglycerols is the hydrolysis of the ester linkage by a lipase. Three different lipases play major roles in triacylglycerol metabolism in animals:
pancreatic lipase (a water‑soluble lipase secreted into the intestine), lipoprotein lipase, and hormone‑sensitive lipase.
a) For the given statements, identify which lipase best fits the description. If none of the lipases apply, choose "none of the lipases."
1. This enzyme hydrolyzes adipose triacylglycerols.
2. This enzyme requires bile salts for activity.
3. This enzyme is found in lysosomes.
4. This enzyme hydrolyzes serum triacylglycerols.

Answers

Answer:

The internal secretion sensitive enzyme concerned within the reaction of fatty triacylglycerol’s. Pancreatic gland enzyme concerned within the reaction of nutritional oil materials in the system alimentation coming back from nutrition and born-again into fatty acids and tangled in the unleash of digestive fluid salts into the internal organ. No accelerator initiate in lysosomes- no one of the lipases (presence of acid lipase in Lysosome)  Pancreatic gland enzyme concerned within the reaction of body fluid triacylglycerol’s.

Given the following evidence; which does not support the theory of Continental Drift? A) climate
B) fossils of plants and animals
C) magnetic strips in the ocean floor
D) land features match up (like mountains) on different continents

Answers

The theory of Continental Drift does not shows evidence about climate. Thus option A is correct.

What is continental drift?

Continental drift is defined as the idea that the positions of Earth's continents have changed over geologic time, giving the impression that they have "drifted" across the ocean floor.

It can also be defined as the continents moving horizontally at a huge scale in relation to one another and the ocean basins throughout the course of one or more geologic epochs.

The theory of plate tectonics, which integrates this idea, had this idea as a key antecedent.

The fit of the continents, the distribution of prehistoric fossils, rocks, and mountain ranges, as well as the placements of prehistoric climatic zones, were all used as evidence for continental drift.

Thus, the theory of Continental Drift does not shows evidence about climate. Thus option A is correct.

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Select the statements that accurately describe endocytosis.

a. The cell forms proteins that move substances into the cell against a concentration gradient.

b. The cell selectively filters small nutrients through specialized membrane pores.

c. The cell membrane pinches off to form an extracellular vesicle joined to the cell by filaments.

d. The cell membrane engulfs a particle in the cytoplasm and forms a vesicle around it.

e. The cell expends energy to transport materials into the cytosol.

Answers

Answer:

The correct answer is:

The cell membrane engulfs a particle in the cytoplasm and forms a vesicle around it.  (d.)

Explanation:

Endocytosis is a type of active transport, where particles such as (large molecules, parts of cells, and even whole cells) are moved into cells.

The various types of endocytosis has a common feature of:

1. invagination of plasma membrane forming pockets around the target particle.

2. the pocket pinches off from original plasma membrane

3. forming a new intracellular vesicle containing the target particle.

The different types of endocytosis includes

a. pinocytosis (cell drinking): takes in extracellular fluids

b. phagocytosis (cell eating): large solid particles are taken in by cells

c. receptor-mediated endocytosis: here, receptor proteins on the cells surface, binds to complementary proteins on the surface of the target particles before endocytosis occurs.

Which is a possible path of the movements of nitrogen in the nitrogen cycle?
(A) soil - airplants air animals - soil
B) soil animals plants
soil
animals soul plants - air
(D) air - soil plants animals soil - air​

Answers

Answer:

B) soil animals plants

soil

Explanation:

Nitrogen is taken up by plant roots and combined into organic substances in the plant, such as enzymes, proteins and chlorophyll. ... Plant and animal wastes decompose, adding nitrogen to the soil. Bacteria in the soil convert those forms of nitrogen into forms plants can use. Plants use the nitrogen in the soil to grow.

Which of the following best describes the process of hydration?

Answers

Answer:

D that is, water bonds with elements in the minerals that make up rock, forming new substances​.

Explanation:

hope its right!

Answer:

Water bonds with elements in the minerals that make up a rock, forming new substances.

Explanation:

you welcome

A front refers to?HURRY

Answers

Answer:

A. Where to air masses meet

Explanation:

Answer:

A. the location where two air masses meet.

Explanation:

As a conservationist, what are your top three concerns regarding the hydroelectric dam and the biodiversity of the region?

Answers

Answer:

I’m concerned about how the dam will affect the water flow in the river, which can affect the behaviors of fish. I’m also concerned that some fish and aquatic animals might get sucked into the dam. Finally, I worry that the dam could malfunction and cause flooding, which could damage the ecosystem.

Explanation:

Top three concerns regarding the hydroelectric dam and the biodiversity of the region

Hydropower can also cause environmental and social problems. Reservoirs drastically change the landscape and rivers they are built on. Dams and reservoirs can reduce river flows, raise water temperature, degrade water quality and cause sediment to build up. This has negative impacts on fish, birds and other wildlife.

How do hydroelectric power plants affect the environment?

Hydroelectric plants alter the natural habitats of freshwater species in the areas they are located. It changes the concentration of nutrients, water temperature, and the river's flow. Downstream river flow suffers a loss of water and silt loads, reducing water quality.

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Orchids are flowering plants that depend on bees for pollination. A population of orchids in a rainforest has reached its carrying capacity. The size of the rainforest's bee population is a limiting factor of the orchid population. What will happen to the orchids' carrying capacity if the rainforest's bee population decreases?

A.
The carrying capacity will not change because it is a constant property of an ecosystem.
B.
The carrying capacity will decrease because the level of the limiting factor decreases.
C.
The carrying capacity will not change because it is a constant property of a species.
D.
The carrying capacity will increase because the level of the limiting factor decreases.

Answers

Answer:

b.  The carrying capacity will decrease because the level of the limiting factor decreases.

Explanation:

i got it right on edmentum

The surface of the villi in the small intestine is covered by a single layer of epithelial cells called enterocytes. Enterocytes absorb nutrients from the intestinal lumen as they move up the side of the villus. The enterocytes are shed from the end of the villus through apoptosis after 3 to 4 days. Consequently, new cells must be continuously supplied from the crypt and move up the villus. When a stem cell in the crypt divides, what are its immediate daughter cells

Answers

Answer:

either a stem cell or a specialized cell, such as an enterocyte

what is waste water treatment ?

Answers

What is waste water treatment ?

“The major aim of wastewater treatment is to remove as much of the suspended solids as possible before the remaining water, called effluent, is discharged back to the environment.”

My source is from www.usgs.gov

How dose natural selection lead to evolution

Answers

Answer:

Naturally selected organisms will survive and reproduce better adapted to the environment. This indicates that this model organism's beneficial allles are passed to offspring. The selection cycle contributes to adaptation for several years.

Explanation:

Hope this helps.



Use the drop-down menus to answer the questions.

Which feature contains genetic material and is present in a eukaryotic cell but not in a prokaryotic cell?

Which two features are present in a plant cell but not in an animal cell? ************someone HELP PLEASE***********

Answers

Answer:

A DNA is contained in the NUCLEUS of a eukaryotic cell not a prokaryotic cell. Your awnser is " nucleus"

Explanation:

The feature that contains genetic material and is present in a eukaryotic cell but not in a prokaryotic cell is the nucleus. The two features that are present in a plant cell but not in an animal cell are the cell wall and chloroplasts.

1. Eukaryotic cells have a membrane-bound organelle called the nucleus that contains the DNA of the cell. It is in charge of conserving and safeguarding the genetic material, including the chromosomes that contain the genes that govern the properties and operations of the cell.

On the other hand, prokaryotic cells are devoid of a genuine nucleus. The cytoplasm of these cells contains their genetic material, which is normally one circular DNA molecule.

2. Cell Wall: The cell membrane of plant cells is enclosed by a strong cell wall. The plant cell is protected and supported structurally by the cell wall. Together with other polysaccharides, proteins, and cellulose, a complex carbohydrate, it essentially consists of these elements. Animal cells lack a cell wall and are supported instead by extracellular matrix and other structural elements.

Chloroplasts: The chloroplasts found in plant cells are in charge of photosynthesis. Specialized organelles called chloroplasts house the pigment chlorophyll as well as other pigments that are used to absorb light energy.

They do this by converting light energy into chemical energy, releasing oxygen as a byproduct and creating glucose. As animal cells lack chloroplasts, they are unable to perform photosynthesis.

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Felis concolor is a species of cat that expresses incomplete dominance in fur color. RR= white fur, rr= black fur, and Rr= grey fur. If you crossed a homozygous dominant male with a homozygous recessive female, what would the resulting genotype and phenotype be?

Answers

Answer:

Explanation:

genotype-

100% Rr

phenotype-

100% grey

Suppose a goat has a homozygous dominant individual (AA) is crossed with an individual
that is heterozygous for the same trait (Aa). What are the possible genotypes of the offspring, and what percentage of the offspring is likely to show the dominant phenotype?

Answers

Answer:

100%

Explanation:

I found this answer by using a Punnet square.

The primary source of energy in the cells is a nutrient called

Answers

Explanation:

The digestible carbohydrates in an animal's diet are converted to glucose molecules and into energy through a series of catabolic chemical reactions. Adenosine triphosphate, or ATP, is the primary energy currency in cells

Most eubacteria are ____________________ because most rely on nutrition from other organisms.

Answers

Answer:

heterotrophic(Heterotrophic Eubacteria are among the most abundant and diverse bacteria on Earth,)

Explanation:

plzz mark me brainliest

Which of these are characteristics of reptiles? Check all that apply.
They undergo internal fertilization.
Their urine is concentrated.
They use their skin for gas exchange.
They have two-chambered hearts.
They are covered in scales.

Answers

the answer is a,b and e

Reptiles are a class of vertebrates made up mostly of snakes, turtles, lizards, and crocodilians. The options (A), (B) and (E) are correct.

What are the characteristics of reptiles?

Reptiles, as most commonly defined are the animals in the class Reptilia, a paraphyletic grouping comprising all sauropsids except birds. Living reptiles comprise turtles, crocodilians, squamates and rhynchocephalians.

Moreover, the major groups of living reptiles—the turtles (order Testudines), tuatara (order Rhynchocephalia [Sphenodontida]), lizards and snakes (order Squamata), and crocodiles (order Crocodylia, or Crocodilia)—account for over 8,700 species.

Therefore, the name "reptile" comes from Latin and means "one who creeps". All living reptile species are cold blooded, have scaly skin, and lay cleidoic eggs. They excrete uric acid (instead of urea), and have a cloaca. A cloaca is a shared opening for the anus, urinary tract and reproductive ducts.

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When do the respiratory and circulatory systems work together?
O A. To promote digestion
O B. To stop bleeding
C. To fight infections
O D. To supply nutrients
SUBMIT

Answers

D to supply nutrients

Which of the following statements is true about the role of water in celular respiration?
It reacts with glucose.
It reacts with oxygen
It is one of the beginning compounds.
It is one of the ending compounds.

Answers

Answer:

it is one of the ending compounds

Explanation:

Answer:

This one is D Have a good day

Explanation:

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