subject

Biology, 24.02.2021 18:40 jerry1496

Down Syndrome is a genetic disorder in humans caused by having three copies of chromosome 21 In their cells how could a person with this disorder
have gotten an extra copy of this chromosome?

A. Replication of chromosome 21 after meiosis
B. Nondisjunction of chromosome 21 during meiosis
C. Crossing over of chromosome 21 with other chromosomes
D. Recombination of chromosome 21 with other chromosomes

ansver

Answers: 2

Show answers

Another question on Biology

question

Biology, 22.06.2019 03:00

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels

Answers: 1

question

Biology, 22.06.2019 07:00

Which of the following will a bacterium produce when a human gene is added to its genome? question 4 options: human carbohydrates a protein made up of both human and bacterial properties the human protein coded for by the human gene human plasmids that can be isolated from the bacterium

Answers: 2

question

Biology, 22.06.2019 11:00

Why did the federal government end its support of yucca mountain as a site for long-term storage of nuclear water

Answers: 1

question

Biology, 22.06.2019 13:30

What kinds of molecules can pass through the cell membrane without any problem?

Answers: 1

You know the right answer?

Down Syndrome is a genetic disorder in humans caused by having three copies of chromosome 21 In the...

Questions

question

Biology, 18.10.2020 05:01

How do enzymes speed up the rate of biological reactions? A. Enzymes increase the activation energy of the reaction. B. Enzymes provide a site...

question

History, 18.10.2020 05:01

Nobody wanted to explore or had interest in the new land that Columbus had discovered in 1492. True Or False...

question

Mathematics, 18.10.2020 05:01

Select the correct answer. The grounds crew at a college is installing a path around a pond on campus as shown. What is the perimeter of the path? PLZ...

question

Mathematics, 18.10.2020 05:01

Tables in the dining hall are numbered 1 through 12 for students who eat there. The principal calls out a number for the table that will go through th...

question

Mathematics, 18.10.2020 05:01

Jaylen’s beta fish tank holds 4 1/2 gallons of water. It takes him 1 7/8 minutes to fill it. What is the flow rate of the water in gallons per minute...

question

Geography, 18.10.2020 05:01

So this a Project. Give me some ideas on it. I have never done one. * Create awareness about earthquake among students. *students will be...

question

English, 18.10.2020 05:01

Plz help... which mood is best supported by the exerpt: Edward nodded but felt uneasy. sleeping in a tent with the other campers sounded OK, bu...

question

Biology, 18.10.2020 05:01

Which describes the scientists who contributed to our current body of knowledge? a. american women b. men and women throughout time c. Eu...

question

History, 18.10.2020 05:01

Which classical civilization controlled lands labeled by A and B? Han China Roman Republic O Gupta Empire Ancient Greece...

question

History, 18.10.2020 05:01

Statues such as this are commonly found in many countries which trace their cultural roots to western civilization because it reflects the - O tradit...

question

English, 18.10.2020 05:01

What is the adverb cause of this sentence? Don’t touch that until I tell you to....

question

Mathematics, 18.10.2020 05:01

Which of the following is not true about similar figures? A Similar figures always have the same shape. B Similar figures always have the same...

question

English, 18.10.2020 05:01

Which description most clearly defines tone in literature? A the opinions the writer expresses through characters and events B. the way t...

question

Arts, 18.10.2020 05:01

Shape is often times confused with another element of design called , the three-dimensional version of shape. a. spacing b. form c. silho...

question

Mathematics, 18.10.2020 05:01

3. ROTATE THE TRIANGLE A(3, 2) B(5,2) C(4,4) 180 DEGREES ABOUT POINT (-2, 2)...

question

Mathematics, 18.10.2020 05:01

Jared poured a small concrete area for the air conditioner. The concrete cannot be exposed to temperatures below 32°F for more than 2 hours in a row,...

question

Mathematics, 18.10.2020 05:01

The coefficient of x^5y^3 in the expansion of (x+4y)^8 is...

question

History, 18.10.2020 05:01

Alexis de Tocqueville wrote about the tyranny of the majority." Explain the danger of majority rule....

question

Mathematics, 18.10.2020 05:01

Factors of 6 as far as possible...

question

Physics, 18.10.2020 05:01

Which of the following statements best describes the definition of distance?...

More questions: Biology Another questions

Questions on the website: 13722359