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
Vika [28.1K]
3 years ago
15

Which of the following events could cause a trisomy in a diploid zygote?

Biology
1 answer:
elena-s [515]3 years ago
8 0

Answer:

In a diploid zygote, the cause of trisomy is two sister chromatids remain joined during meiosis II (option B).

Explanation:

At the end of meiosis I, each daughter cell contains a chromosome formed by sister chromatids, each of which must be separated in meiosis II to form the gametes with a chromosome charge equivalent to half the chromosome charge of the species.

The result of the sister chromatids not separating in meiosis II -by not disjunction- results in a gamete with an extra chromosome, which when joined to another gamete results in a zygote with an additional chromosome, which is considered an aneuploidy, called trisomy.

Learn more:

Trisomy brainly.com/question/484286

You might be interested in
Dietary fiber may play a role in the prevention of
jolli1 [7]
It can prevent colon cancer lol
6 0
3 years ago
Can we please help
mojhsa [17]
A !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
8 0
3 years ago
Read 2 more answers
The cell will enter the G1 phase. During this phase, proteins and nucleotides needed for DNA replication will be produced. Also,
kolbaska11 [484]

Answer and Explanation:

The interphase is the previous step before mitosis occurs. The interphase is conformed of the G1, S, and G2 stages.

  • During the G1 stage, it occurs a high intense biochemical activity. The cell duplicates its size, and the organelles and other molecules and cytoplasmatic structures duplicate too. Some structures, such as microtubules and actin filaments, are synthesized from zero. The endoplasmic reticulum increases in size and produces a membrane for the Golgi apparatus and vacuoles, lysosomes, and vesicles. During this stage, the pair of centrioles separate, and each centriole duplicates. Mitochondria and chloroplasts also replicate.

The stages S and G2 follow the G1. Once the whole interphase is completed, mitosis occurs.

  • During the S stage occurs the DNI replication process. At this point, it also occurs the synthesis of histones and other associated proteins. This is the only stage where the DNI molecule is replicated.
  • G2 stage is the final one before the cellular division. Here it begins the slow process of DNI condensation. Duplication of centrioles completes. Structures such as spindle fibers are assembled.
5 0
3 years ago
What process is typical of cancer?
Yakvenalex [24]
I don’t know LOLLLLLL UHHHH jk D
7 0
3 years ago
Read 2 more answers
Failure in a particular structure of the heart tends to cause a backup of blood in the lungs, known as pulmonary congestive hear
xeze [42]

Answer:

Left ventricle.

Explanation:

Human heart is divided into four chambers - two auricles and two ventricles. Heart acts as the pumping organ and carries both oxygenated and deoxygenated blood in the right and left ventricles.

The failure of functioning of any chamber of heart may cause a particular disease in the individuals. The pulmonary congestive heart failure occurs due to the failure of the left ventricles of the heart. The left ventricle carries blood from heart to the body tissues, its failure leads to the backup of blood in the lungs.

Thus, the answer is left ventricle.

5 0
3 years ago
Other questions:
  • In an controlled experiment, why is it important to change just one variable at a time
    5·1 answer
  • Please help
    11·1 answer
  • Consider the diversity of the later Homo species discussed in this lab. Why do you think our direct ancestor survived when the o
    8·1 answer
  • What is it called when sediment is dropped and comes to rest? a. erosion c. weathering b. deposition d. compaction
    8·2 answers
  • Which climate favors mechanical weathering? dry climate cold climate warm climate desert climate
    10·1 answer
  • Select the correct answer.
    11·1 answer
  • 1. Refer to objective #11 ("Discuss how technology has improved our ability to find and use ocean resources.". If you visit the
    12·1 answer
  • Im dumb please help me<br>*the organelle is mitochondria* ​
    7·1 answer
  • In legumes, Rhizobium bacteria are more commonly observed in the roots. The Rhizobium provided usable nitrogen while the plant i
    12·1 answer
  • Whenever electrosurgical instruments are used, the irrigation fluid must be ________.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!