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
4vir4ik [10]
3 years ago
13

A student in a biology class crossed a male Drosophila melanogaster having a gray body and long wings with a female D. melanogas

ter having a black body and apterous wings. The following distribution of traits was observed in the offspring.
Phenotype Number of Offspring

Gray body, long wings 42
Gray body, apterous wings 9
Black body, apterous wings 41
Black body, Iong wings 8
Which of the following is supported by the data?

A) The alleles for gray body and long wings are dominant.
B) The alleles for gray body and long wings are recessive.
C) Genes for the two traits are located on two different chromosomes, and independent assortment occurred
D) Genes for the two traits are located close together on the same chromosome, and crossing over occurred between the two gene loci.
Biology
2 answers:
Kazeer [188]3 years ago
7 0

Answer:

D) Genes for the two traits are located close together on the same chromosome, and crossing over occurred between the two gene loci.

Explanation:

According to the data shown above, we can see that at the crossing of the two flies the genes for the two characteristics are located close to each other on the same chromosome, and the crossing occurred between the two genetic loci.

As you may already know, a chromosome is a molecule formed by the correlation between DNA and proteins that keep the DNA compacted and prevent it from spreading.

Genetic loci, on the other hand, are regions on chromosomes where a specific gene for a specific trait is located.

Papessa [141]3 years ago
5 0

Answer: C. Genes for the two traits are located on two different chromosomes, and independent assortment occurred

Explanation:

You might be interested in
Bonjour ! On m'a posé cette question en cours d'SVT : décrivez le mécanisme qui permet d'expliquer la différence entre le nombre
kozerog [31]

Bonjour, je ne connais pas beaucoup le français, je suis donc traductrice. De mon point de vue, je suggère d'utiliser les informations dont vous disposez et de les utiliser sur le graphique. J'espère que cela a aidé.

8 0
2 years ago
WILL GIVE BRAINLIEST
zalisa [80]

Answer:

B. Blood viscosity increases and results in decreased blood flow throughout the body.

hope this helps :D

3 0
3 years ago
_____ are the reproductive organs that produce gametes. Gonads Larva Embryos Chitin
BlackZzzverrR [31]
Gonads are the reproductive organs that produce gametes. 

Gametes are also known as sex cells. They are produced by the gonads. In males, the gonads are the testes. The gametes that are produced by males are called sperm cells.  In females, the gonads are the ovaries. The gametes that are produced by females are called egg cells.  
4 0
2 years ago
The best treatment for a bacterial disease is
Furkat [3]
B - Antibiotics
Antivirals treat viruses, antifungals treat fungi, and OTC treatments are merely symptomatic treatment. Antibiotics typically dissolve the cell wall of bacteria meaning they explode, so they actually kill the bacteria.

8 0
2 years ago
Read 2 more answers
The rough endoplasmic reticulum is a cell structure that consists of folded membranes that contain ribosomes. What is the advant
attashe74 [19]

Answer:

B

Explanation:

The folds contain ribosomes attached to the membrane. The more the folds the more the surface area to which more ribosomes can attach. The ribosomes are organelles responsible for the manufacture of protein in cells. Thereafter, the proteins are properly folded by the mediation of chaperones in the lumen of the RER.

6 0
3 years ago
Other questions:
  • In guinea pigs, black fur (B) is dominant over white fur (b) and rough fur (R) is dominant over smooth fur (r). A cross between
    5·1 answer
  • What is cactus plant?
    13·2 answers
  • Which statement below regarding membrane structure and membrane transport is true?
    9·1 answer
  • If energy is not from above and not from the sun then where do some organisms obtain energy
    12·1 answer
  • Find the total number of each item requested below for the compound shown. 2H2CO3
    15·2 answers
  • What are the advantages of Mempro ™ liposome technology?
    8·1 answer
  • Which process involves TWO DNA divisions?<br> A. Mitosis<br><br> B. Meiosis
    11·2 answers
  • Help pls :(( it would help me alot
    6·1 answer
  • Question 23 of 33
    5·1 answer
  • A researcher proposes a model of an enzyme catalyzed reaction in which a reactant
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!