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yaroslaw [1]
3 years ago
12

Down's syndrome is a condition where an extra chromosome is produced on the _____ chromosome.

Biology
2 answers:
AnnZ [28]3 years ago
4 0

Answer: On the Y chromosome

scoray [572]3 years ago
3 0

Answer: 21th

Explanation: Down syndrome a.k.a trisomy 21 because it’s caused by an extra copy of a chromosome 21.

Hope easy and helps! ^^

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Earth's interior is composed of different layers classified by what two things?
Lady bird [3.3K]

Answer:

It is Composition hope this h

Explanation: hope this helped

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3 years ago
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This organism uses its whiplike flagellum to propel itself through water. It has chloroplasts that allow it to perform photosynt
Flura [38]

Answer:

Bacteria

Explanation:

The organism is bacteria because it performs photosynthesis and can propel itself with flagella. It is not an animal because it can photosynthesize and it is not a plant because it has flagella like bacteria does.

4 0
3 years ago
Explain why the populations of great apes in Africa are declining.
weqwewe [10]

Answer:

The number of gorillas and chimpanzees in Central Africa continues to decline due to hunting, habitat loss, and disease, combined with a widespread lack of law enforcement and corruption in the judicial process, according to a new conservation plan by IUCN, the Wildlife Conservation Society (WCS), WWF, and partners.

Explanation:

<em>Hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em><em>u</em><em> </em>

<em>Crown</em><em> </em><em>me</em><em> </em><em>as</em><em> </em><em>brainliest</em><em>:</em><em>)</em>

3 0
3 years ago
Which group of non-prokaryotic organisms studied in microbiology typically have two life cycle stages: trophozoite and cyst?
Mama L [17]

Non-prokaryotic organisms typically have two life cycle stages: trophozoite and cyst is Protozoa.

<h3>What is Protozoa?</h3>
  • Protozoa is a group of single celled, non- prokaryotic organisms.
  • These may either be free living or parasitic in nature.
  • These are heterotrophs and reproduce asexually by binary fission.
  • The Protozoa consists of many unrelated or loosely related organisms.
  • They are divided into four major groups:  Sarcodina, Flagellates, Ciliates and Sporozoans..
  • Some protozoa consist of two phases in their life cycle: proliferative stage (trophozoites) and resting stage (cysts).
  • Trophozoites consists of the proliferative stage in which the protozoa divides and reproduces.
  • The resting cyst form helps the protozoa to survive harsh environmental conditions like harmful chemicals, extreme temperature and nutrient and water deficiency.

Learn more about protrozoa here:

brainly.com/question/15427385

#SPJ1

3 0
1 year ago
A population of white-tailed deer inhabits a certain patch of forest in michigan. Which group of alleles can be considered the g
emmainna [20.7K]

Answer:

the dominant alleles of white-tailed deer in this population only!

Explanation:A group of individuals of the same species that interbreed with each other is known as a population. The study of change in genetics is called population genetics which includes genes and alleles.  

Complete set of genes and their alleles that are present in a population is called gene pool. Gene pool includes both dominant and recessive alleles of every gene present in a population that can be transmitted in the next generation.

Population with high genetic pool has high diversity which increases the fitness of a population. As gene pool include all the genes and its allele in a population, therefore, the correct answer is all alleles of the white-tailed deer in this population only.  

5 0
2 years ago
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