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
Harrizon [31]
3 years ago
5

When a child is born with down syndrome when did the mutation occur

Biology
1 answer:
bazaltina [42]3 years ago
7 0

Answer:

Down syndrome occurs when the nondisjunction occurs with Chromosome 21. Meiosis is a special type of cell division used to produce our sperm and egg cells.

You might be interested in
There are 252 deer in a population. There is no net immigration or emigration. If 47 deer die and 32 deer are born in one month,
morpeh [17]

Answer:

240

Explanation:

252-47=205

205+32=237

237 to the nearest whole number is 240

hope it helps

7 0
2 years ago
suppose you are studying a fruit fly's DNA and you discover a gene for antenna length on chromosome 2. what word describes its l
soldier1979 [14.2K]

Answer:

<h2>In all flies,on the same Locus, on chromosome 2 at the same place you find the gene for antenna length.</h2>

Explanation:

In all fruit flies ,on the same  Locus, on chromosome 2 at the same place you find the gene for antenna length

All fruit flies contain same amount of gene and chromosomes, so the location of all gene in all fruit flies found at the same location.

A gene for antenna length in all fruit flies on chromosome 2 is present on same the location.

3 0
3 years ago
PLS ANSWER MY QUESTION TODAY 50 POINTS!☺♥..According to the tide tables, is Boston experiencing a neap tide or a spring tide on
user100 [1]
Neap tide: A tide in which the difference between high and low tide is the least. Neap tides occur twice a month when the Sun and Moon are at right angles to the Earth. ... Spring tides occur when the Moon is either new or full, and the Sun, the Moon, and the Earth are aligned.

Answer: Neap tide

5 0
3 years ago
Which star group does Proxima Centauri belong to?​
Alisiya [41]
The what did you ask bi
4 0
3 years ago
In 1665, a scientist named Robert Hooke examined a thin piece of cork through a microscope. The drawing below represents what he
-Dominant- [34]

The Englishman Robert Hooke (18th July 1635 - 3rd March 1703) was an architect, natural philosopher and brilliant scientist, best known for his law of elasticity (Hooke's law), his book Micrographia, published in 1665 and for first applying the word "cell" to describe the basic unit of life. It is also less well known that there is substantial evidence that Hooke developed the spring watch escapement, independently of and some fifteen years before Huygens, who is credited for this invention. Hooke also is recognised for his work on gravity, and his work as an architect and surveyor.


Hooke's Micrographia

Here, we focus on his pioneering work using the microscope to document observations of a variety of samples in his book Micrographia, published in September 1665.


Hooke began his famed career by initially studying at Wadham College, Oxford, where he worked closely under John Wilkins with other contemporaries, including Thomas Willis and Robert Boyle, for whom he built the vacuum pumps used in Boyle's gas law experiments. He also built some of the earliest telescopes, observing the rotations of Mars and Jupiter, and, based on his observations of fossils, was an early proponent of biological evolution. If that wasn't enough, he investigated the phenomenon of refraction, deducing the wave theory of light, and was the first to suggest that matter expands when heated and that air is made of small particles separated by relatively large distances, yet curiously Robert Hooke is somewhat overlooked in his contributions to science, perhaps as there were many people who wrote of Hooke as a difficult personality, being described as of "cynical temperament" and of "caustic tongue". There were also disputes with fellow scientists, including disputes with Isaac Newton over credit for work on gravitation and the planets. Though it must be remembered that Hooke lived at a time of immense scientific progress and discovery and none of the above diminish Hooke'

7 0
3 years ago
Read 2 more answers
Other questions:
  • An ecological pyramid shows the transfer of energy. Which level will contain only 0.1% of the total energy obtained from the Sun
    10·2 answers
  • How are different climates affected by water erosion?
    10·1 answer
  • 1.Describe at least one societal issue that scientists will be able to address using the sequence of the human genome.
    9·1 answer
  • What moves the food from your mouth to your stomach when you swallow? undulatory muscle contractions pressure difference between
    5·2 answers
  • What is the movement of air in and out of lungs called
    12·2 answers
  • Beer brewers and wine makers use grain or fruit to make alcoholic beverages. The process uses yeast, single-celled fungi that gr
    5·2 answers
  • What type of bird has a specialized beak for eating meat?
    13·1 answer
  • Chromosomes from a mother and a father combine during fertilization. What does the offspring of two parents inherit through thes
    8·1 answer
  • I need help with this...I will give brainliest to correct answers to this pls..
    9·1 answer
  • How do cells get energy from sugar
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!