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
a_sh-v [17]
3 years ago
5

Triple X syndrome, or trisomy X, occurs when a female has an extra X chromosome in each of her cells. This results when the moth

er's reproductive cells divide improperly, and two X chromosome are moved into one gamete. When that gamete is fertilized and the father's DNA and X chromosome are combined with the mother's, that gives the cell three X chromosomes instead of two. Triple X syndrome occurs because of...
A) Crossing over
B) Nondisjunctions
C) Point mutations
D) Deletions
Biology
2 answers:
almond37 [142]3 years ago
6 0

Answer: B) Nondisjunction.

Explanation: Syndromes such as triple X syndrome, Turner's syndrome, Down syndrome, and Klinefelter's syndrome occur because of nondisjunction, or the improper separation of the chromosomes during division. In each of these cases, an extra chromosome (X chromosome for triple X, chromosome 21 for Down syndrome, etc.) causes symptoms in the offspring. In some syndromes, such as triple X syndrome, the symptoms are often not very noticeable.

Kisachek [45]3 years ago
5 0
The answer is b, non-disjunction
You might be interested in
The medical specialist that frequently determines the cause of death is the
Ad libitum [116K]
Answer:  board-certified "pathologist" (physician).
_________________________________________________
6 0
2 years ago
Provide evidence to reject this statement, "Human phenotypes are usually a clear cut either situation"
tensa zangetsu [6.8K]
Wavy hair is a very easy example that this is false.  It's a merge between straight and curly hair.  Our traits tend to mix and blend together, it's not so simple.  Everybody isn't just tall or short, one or the other.  Everybody is a different height because it's a mid between your parents. 
8 0
3 years ago
Read 2 more answers
A sample of ascorbic acid (vitamin C) is synthesized in the laboratory. It contains 1.50 g of carbon and 2.00 g of oxygen. Anoth
faust18 [17]
 It contain oxygen atom calculated below
<span>6.35gC x 2.00gO/1.50gC
 = 8.47g O 
</span><span>  The law is that a sample of a pure substance is the same as any other sample of the pure substance no matter what the source is
</span>hope it helps
5 0
3 years ago
Read 2 more answers
The most easily polluted groundwater reservoirs are A. salt reservoirs. <br> B. sewage plant reservoirs. <br> C. water-table aqu
Luda [366]
Water-table aquifers, I believe! :)

6 0
2 years ago
Flowers are a collection of _____ tissue produced by some plants.
Lostsunrise [7]
There are choices for this question namely:

1. Sterile
2. Reproductive
3. Both
4. Neither

The correct answer is that flowers are a collection of reproductive tissue produced by flowering plants (angiosperms). The flower is a reproductive organ of the plant. It is composed of the male organ (stamen) which produces the pollen and the female organ (ovary) which receives the pollen. Once the ovary receives the pollen either from the same plant or from another through pollination, the ovule (part of the ovary) will then become the seed and the ovary will become the fruit. The seed is the "embryo" of the plant wherein if planted, it will grow to a new plant. 
4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the vegetative free living form of a protozoan cell?
    6·1 answer
  • Which are required for natural selection to occur
    9·2 answers
  • Why are legumes self sufficient when it comes to nitrogen?
    6·1 answer
  • What could cause an igneous rock to become soil?
    12·2 answers
  • What is the average hearing range of humans?
    8·2 answers
  • Food is moved from the mouth to the stomach by what
    9·2 answers
  • It took Jeremy two hours to hike to the top of the mountain. Two weeks
    14·1 answer
  • How many kingdoms are there in the domain Bacteria? <br> A. 4 B. 3 C. 1 D. 2
    9·2 answers
  • Most fossils from when living things die and are buried by
    6·1 answer
  • 10 points!!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!