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
liubo4ka [24]
3 years ago
14

Describe the process of crossing over during prophase i and explain how genetic recombination occurs.

Biology
1 answer:
ludmilkaskok [199]3 years ago
7 0
This is when crossing over occurs which is the exchange of genetic material across the synapse between either homologous chromosome.
You might be interested in
In cats, the Dense pigment gene, D/d, codes for melanophilin, a protein involved in the transportation and deposition of pigment
SVETLANKA909090 [29]

Answer:

a. M_D_ : 9/16 Black furred individuals

b. M__dd : 3/16 gray furred individuals (1/16 MMdd + 2/16 Mmdd)

c. mmD_ : 3/16 Brow-furred individuals (1/16 mmDD + 2/16 mmDd)

d. mmdd: 1/16 gray furred individuals.

Explanation:

Available data:

  • Dense pigment gene, D, codes for melanophilin.
  • D allele dominant over d.
  • Gene M/m is responsible for the production of the pigment
  • M is dominant over m
  • If D is present, M/m is expressed
  • If dd is present, M/m is not expressed  
  • DDMM, DdMM, DDMm, DdMm --->Black fur
  • DDmm, Ddmm ---> Brown fur
  • ddMM, ddMm -----> Light gray fur

Cross: between two dihybrids

Parental)         DdMm     x     DdMm

Phenotype) Black-furred      Black-furred

Gametes) DM, Dm, dM, dm   DM, Dm, dM, dm

Punnet Square)    DM        Dm         dM          dm

             DM       DDMM    DDMm   DdMM   DdMm

             Dm       DDMm    DDmm   DdMm   Ddmm

             dM        DdMM    DdMm    ddMM   ddMm

             dm        DdMm    Ddmm    ddMm   ddmm

F1) 9/16 Black-furred individuals, D-M- (1/16 DDMM + 2/16 DDMm + 2/16    

                                                                 DdMM + 4/16 DdMm)

    3/16 Brown-furred individuals, D-mm ( 1/16 DDmm + 2/16 Ddmm)

    4/16 Gray-furred individuals, dd-- ( 1/16ddMM + 1/16 ddmm + 2/16 ddMm)

   

   

7 0
3 years ago
What are the causes of the attractions and repulsions between molecules of water
Inessa05 [86]
The causes of the attractions and repulsion between molecules of water is that the oxygen and hydrogen atoms share electrons in bonds but its not equal. I hope this is the answer you are looking for! :)
8 0
3 years ago
A series of hollow organs joined in a long, twisting tube from the mouth to the anus.​
natita [175]

Answer:

The digestive system!

Explanation:

The digestive system is made up of the digestive tract - a series of hollow organs joined in a long, twisting tube from the mouth to the anus - and other organs that help the body break down and absorb food.

Organs that make up the digestive tract are the mouth, esophagus, stomach, small intestine, large intestine - also called the colon - rectum, and anus.

6 0
3 years ago
The sequencing of mitochondrial dna to trace changes in human ancestors over time involves which specialization of anthropology?
WARRIOR [948]
For the answer tot he questions above, the answer is "paleoanthropology"

It is also called human paleontology. It is a <span>branch of anthropology that is concerned with the origins and development of the early humans.
I hope my answer helped you.
</span>
5 0
3 years ago
Read 2 more answers
All of Earth's biomes and ecosystems, except the most remote, are affected by the impact that humans have made on the environmen
irina [24]

Answer:

b. False

Explanation:

All biomes, even the most remote, are affected by the impact humans have on the environment.

Humans have been causing deforestation, pollution, agricultural expansion, mining, desertification, extinction of animals and plants, burning and other practices that have had extremely negative impacts on biomes around the world. In addition, all the pollution and exploitation of nature that humans have caused has caused harmful climate change that has affected even the most remote biomes.

The biome is a large set of interconnected ecosystems. Ecosystem, in turn, is an ecological system where there is life and interaction between living beings in a given space, and can vary in size, from a puddle to a large forest.

7 0
3 years ago
Other questions:
  • Suppose in pine trees long needles (L) are dominant to short needles. Cross a
    13·1 answer
  • What is required to determine whether or not an object moves?
    14·1 answer
  • Which of the following is false about sensation? When sensory information is detected by a sensory receptor, sensation has occur
    10·1 answer
  • What is a society that is able to survive and function over a specified time?​
    11·1 answer
  • If someone adds thousands of small fish to a lake, how would the number of big fish<br> change?
    9·1 answer
  • Which of the following have improved farming practices and crop production? Select all that apply.
    14·1 answer
  • Angel was trying to explain carrying capacity to her mother. Which of the following descriptions is accurate?
    15·1 answer
  • Round 578.683 m and 47.3333
    9·1 answer
  • What is the Linnaean system of classification? Why do scientists classify animals?
    15·1 answer
  • Destruction of lymphocytes with self-specificity is called select one:
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!