1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lana71 [14]
3 years ago
9

In Drosophila, the genes for body coloration and eye size are on different chromosomes. Normal-colored bodies are dominant to eb

ony-colored (very dark) bodies, and normal-sized eyes are dominant to eyelessness. Line A is true breeding for normal bodies and normal eyes, whereas line B is true breeding for ebony bodies and eyelessness. From an F 2 cross between lines A and B, 800 flies are scored. How many F 2 flies are expected to have normal body color and to be eyeless
Biology
1 answer:
hammer [34]3 years ago
3 0

Answer:

150.

Explanation:

150 flies are expected to have normal body color and to be eyeless in F2 generation. The reason for that population is the ratio of the species produced. The ratio of the species are 9:3:3:1. Ratio 9 refers to first parent while 1 refers to second parent and the middle 3's represent the hybrid formed. So the population of first parent is 450 and population of second parent is 50 while the population of two hybrids are 150 each.

You might be interested in
Is it true that all cells have the same genes, but different genes are active in different cells?
Sav [38]

Answer:

Is it true that all cells have the same genes, but different genes are active in different cells.

No, all cells are made up of a gene which is inherited from the parents cell. The gene is located in the DNA which is found in the nucleus of every living cell

Explanation:

7 0
3 years ago
In mendel’s peas, plants homozygous for the recessive allele d are dwarfs. the dominant allele d determines the normal tall phen
Zolol [24]
So, recessive allele 'd' are dwarfs. 
The dominant allele is 'D' determines tall. 
All you have to do is try to cross the alleles together to get either a homozygous or heterozygous remain. So, you should be able to get Dd or DD. 
3 0
3 years ago
Question 1. Carbohydrates consist of which of the following elements? (CHOOSE ALL THAT APPLY)
My name is Ann [436]

Answer:

Carbohydrates consist of which of the following elements? (CHOOSE ALL THAT APPLY)

Question 1 options:

Carbon

Hydrogen

Oxygen

Calcium

Question 2 (2 points)

Saved

Which of the following statements about carbohydrates are NOT true?

Question 2 options:

Your body uses carbohydrates to give you energy and keep everything going.  

Carbohydrates can be referred to as simple or complex sugars.  

Starch is an example of a simple carbohydrate.  

Starch must be broken down through digestion before your body can use it as an energy source.

Question 3 (2 points)

Saved

Proteins are made up of smaller molecules called

Question 3 options:

starches.

amino acids.

monosaccharides.

protein synthesis.

Question 4 (2 points)

Saved

Choose all of the following statements that correctly explain what essential amino acids are:

Question 4 options:

It is essential that our diet provides these amino acids.  

There are 20 essential amino acids.

Peanut butter on wheat bread is an example of a combination of foods that you can mix together to obtain the essential amino acids.

Can be considered as saturated or unsaturated.

Question 5 (1 point)

Saved

Nutritionists measure the amount of energy in food in Calories. According to the article, fats contain the highest number of Calories.

Question 5 options:

True

False

Explanation:

All the bolded ones aqre correct sorry for lateness just finished test.

8 0
3 years ago
Organic sediment on lake bottoms and the ocean floor is broken down by microbes into inorganic forms of phosphorous in a process
murzikaleks [220]

Answer: Mineralization

Explanation: Phosphorous cycle moves through the rocks, water, soil, sediments and organisms.

The weathering of rock releases phosphate ions and other minerals. Plants take up the phosphate from the soil. Phosphorous is present in the form of organic phosphate which is broken down by the help of microorganism in the form of inorganic phosphate.

This process is known as mineralization.

6 0
3 years ago
Read 2 more answers
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre
Elanso [62]

Answer:

The punnet square will be completed as follows:

       T        t

T     TT     Tt

T       TT     Tt

A punnet square can be described as a diagram which shows the results of a cross.

The cross shows that the female parent carries homozygous alleles, TT, whereas the male parent carries heterozygous alleles, Tt.

The offsprings from this cross will have 50% probability of being homozygous as the female parent and will have a 50% probability of being heterozygous like the male parent.

7 0
3 years ago
Other questions:
  • A nurse who has been caring for a pregnant client understands that the client has pica and has been regularly consuming soil. fo
    14·1 answer
  • Horses and donkeys can mate, but they produce a mule, which is always a sterile animal. This means that they cannot produce viab
    7·2 answers
  • How do folded, volcanic, and fault-block mountains differ
    5·1 answer
  • CCC Predict: Suppose you randomly picked out two members of the
    9·1 answer
  • Which is a role of Eubacteria in living systems?
    11·2 answers
  • A historian is reading a book of ancient history that describes a plant bred for long, leafy flower buds that never open, result
    12·1 answer
  • HELP!! Brainliest plus 50 points
    12·1 answer
  • Match the reactants and products with the correct HALF of PSN.
    9·1 answer
  • An incubation period is a time between when you contract a virus and when your symptoms start.
    11·1 answer
  • Why do scientists use light-year instead of Astronomical Units to measure the distances between stars?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!