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
krek1111 [17]
3 years ago
7

Explain how a testcross can provide evidence for or against linkage.

Biology
1 answer:
MrRa [10]3 years ago
7 0

Answer:

Testcrosses clarify linkage because each phenotypic class of progeny corresponds to each gamete type produced by the dihybrid parent.

Explanation:

  • A test cross involves the crossing of an individual with another phenotypically recessive individual so as to determine the zygosity of the former by analyses of the proportions of offspring phenotypes.
  • In order to determine linkage, the test cross shows that if the parentals are more than the recombinants, we can say that the two genes such as b and c  are genetically linked and therefore, they must be on the same chromosome.
  • Also, the test-crosses help to find out which alleles came from which parent.
  • By setting up testcrosses in which one parent is homozygous for the recessive alleles of both genes,we can analyze the gene combinations received in the gametes from the other, doubly heterozygous parent.
You might be interested in
Please help :)))) biology
Anni [7]
I am pretty sure it's D) use of electrons focused by magnetic fields.
5 0
3 years ago
Read 2 more answers
List the DNA strand that is complementary to the DNA Strand of:<br> AGT-TGA-CAT
irga5000 [103]
DNA strand:
TCA-ACT-GTA
7 0
3 years ago
2. How do the bases bond together?
telo118 [61]
A bonds with T in DNA
A bonds with U in RNA
G bonds with C IN DNA

In RNA, the only difference with the code is uracil takes thymines place
4 0
3 years ago
What component of the circulatory system is at the tissue level?
Paraphin [41]

The answer is b. blood,  Blood is considered a tissue even though it is liquid.
6 0
3 years ago
Read 2 more answers
Which geological era is known as the age of reptiles?
Andrews [41]
The Geological Era ''Mesozoic'' is known as the age of reptiles, dinosaurs and other huge reptiles roamed earth in this era. I hope this helps.
7 0
3 years ago
Read 2 more answers
Other questions:
  • 5. How does the location of the nodules relate to the function of the nodule? Explain.
    5·1 answer
  • True or false? variation in human skin color is an example of clinal variation.
    14·1 answer
  • Damage to the ________ nerve would result in near paralysis of the eye.
    14·2 answers
  • Which is an example of dehydration synthesis?
    11·1 answer
  • Which would least likely be a cause of natural selection
    5·1 answer
  • How does the number of chromosomes in the daughter cells of meiosis different from those in mitosis?
    11·1 answer
  • A planet has an orbital period of 3.24 years . What is the average distance of the planet from the sun? A.2.19
    6·2 answers
  • Crossing over is a very important event in prophase 1 of meiosis! What happens during crossing over and what is the significance
    7·1 answer
  • What is not true about landslide
    5·2 answers
  • Photosynthesis takes place in two separate but dependent series of steps:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!