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
ella [17]
3 years ago
12

During meiosis i, assuming no crossing over, what chromatid combination(s) will be present at the completion of prophase i?

Biology
1 answer:
arsen [322]3 years ago
4 0

Answer

         Crossing over is the phenomenon in which exchange of chromtids occur between non sister chromatids  and result into recombinant chromatids, which is an important tool for evolution and bring about genetic changes in offsprings as compare to their parents.

No crossing over

                If no crossing over occurs, it means no exchange of chromatids between non sister chromatids of homologous chromosomes, then no recombinant chromatids will be formed.

Result

        At the end of meiosis II, when four haploid cells are formed, all these cell will contain similar chromosomes as present in parent. Thus chromosomes are non recombinant because of no crossing over.

You might be interested in
All of the following are endocrine glands except the
oksian1 [2.3K]
Except the c) sweat gland
5 0
3 years ago
As you study two closely related predatory insect species, the two-spot and the three-spot avenger beetles, you notice that each
AVprozaik [17]

Answer:

d. Character displacement

Explanation:

Character displacement is the phenomenon in which the similar species living in the same geographical region with similar niches differentiate in order to reduce their niche overlap and avoid competitive exculsion. Just like in this case of two- spot and three -spot avenger beetles as their timmings for hunting is different where their ranges overlap. So it's the good example of character displacement,

8 0
3 years ago
Read 2 more answers
Cetaceans are whales and their relatives. The diagram shows some fossils of cetaceans.
alexgriva [62]

Answer:

i think it's "C"

Explanation:

because if both have similar structure then just have some relation

6 0
3 years ago
start this thing that red pandas and raccoons are more a recent common ancestor that red pandas and giant pandas do if true what
adelina 88 [10]

Answer:

D

Explanation:

im going to guess its a cause think of it this way its like family in a way if raccoons and red pandas are a more common ancestor than they might have been family along the lines of history somewhere if its not a than d i hop this helps and id pick d it sounds more frequent

7 0
4 years ago
Hypoxia is known to cause a disruption of somitogenesis. If a mouse embryo were temporarily exposed to low levels of oxygen duri
Pani-rosa [81]

The answer to this question is: abnormal development of the caudal (tail) vertebrae

Somitogenesis refers to the process during embryo development in which somites form. These somites are cells that will give rise to structures associated with the vertebrae body plan. Somites form sequentially from the head to the tail, where each new somite forms on the caudal or tail region of the previous one.  

Somitogenesis represents the first sign of segmentation of the developing vertebrate embryo. During somitogenesis, the unsegmented paraxial or presomitic mesoderm in the trilaminar embryonic stage is segmented in order to form pairs of somites. Moreover, caudal vertebrae refer to the bones that form the tail of vertebrates, which derive from caudal somites.

Embryo hypoxia refers to the condition in which the developing embryo does not receive sufficient oxygen (O2) supply. It has been shown that hypoxia during embryo development can increase the incidence of malformations. In this case, embryo hypoxia affects normal caudal somite segmentation, thereby leading to defects in the caudal (tail) vertebrae.

Learn more about this topic here:

brainly.com/question/13047135?referrer=searchResults

brainly.com/question/17228670?referrer=searchResults

6 0
3 years ago
Other questions:
  • Need help..plz help me
    5·2 answers
  • The membrane potential in which there is no net movement of the ion across the membrane is called the _____.
    10·1 answer
  • Blood enters which of these vessels during ventricular systole?
    9·1 answer
  • How does the acidity of acid rain compare to the acidity of natural rainwater
    5·1 answer
  • In eukaryotic cells the first step in protein synthesis is the _____.
    9·1 answer
  • Which of the following statements regarding cnidarians is true? The digestive and circulatory compartment of cnidarians is calle
    10·1 answer
  • A version of a gene is called a(n)<br> O allele.<br> O autosome.<br> O karyotype<br> O phenotype.
    7·1 answer
  • During protein synthesis, what does mRNA do?
    8·2 answers
  • HHEEELPP[pppppp MMEEEEEE ill mark you brainiest !
    6·1 answer
  • Question 3 (1 point)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!