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cupoosta [38]
3 years ago
13

Why is the karyotype for people with Turner syndrome written as 45XO

Biology
1 answer:
Kryger [21]3 years ago
8 0

The number 45 means that the subject has 44 normal autosomal chromosomes (22 chromosomes pairs) plus one (1) good sex chromosome (out of the normal homologous pair). The X0 means that the subject, usually a female, lacks one sister chromosome of the homologous X chromosome pair, or has a partial X sister chromosome.






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There are many different types of cells with many different types of cellular structures and functions. Which of these structure
Varvara68 [4.7K]

Answer:

Hope it helps. Look below plz.

Explanation:

It includes features from all cell types. A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm.

8 0
3 years ago
Identifying the genetic sex of a child is based on finding intracellular barr bodies that consist of?
AURORKA [14]

Identifying the genetic sex of a child is based on finding intracellular Barr bodies that consist of inactive chromatin material.

Inactive chromatin material is the one where no transcription takes place. It is also known by the name heterochromatin. It appears as a dark condensed form in the chromatin.

Barr bodies are the inactive X chromosomes. These are mad inactive by a process termed as lyonization. It is essential to make the chromosome inactive in organisms with XY type of sex determination. They are present at the periphery of the nucleus. Inactivation of X chromosome makes the amount of X chromosomes equal in both, males and females.

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brainly.com/question/26376422

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8 0
2 years ago
"Adaptations develop in response to environmental changes. For example, if a human population was displaced into the ocean, even
mel-nik [20]

Answer:

uh Photoperiodism

Explanation:

3 0
2 years ago
In 1815 a volcano erupted spewing billions of tons of ash into the sky. This ash "cloud" caused global annual temperatures to dr
lianna [129]

Answer:

The Atmosphere

Explanation:

1816 was a year without summer because the billions of tons of ash that was spewed blocked radiation preventing it from reaching the surface of the earth.

A volcano is a break in the crust of planetary bodies like Earth that allows gasses, volcanic ash, and hot lava to escape. Volcanos are one of the major factors that cause climate changes on Earth mostly because of their cooling effect.

The ash, gasses and lava usually escape to the atmospheric layer of the earth with their cooling effect. And they cool the earth by blocking incoming solar radiation. This can go on for months or years depending on the components and severity of the eruption and can lead to "a year without summer" as witnessed in 1816.

6 0
3 years ago
3. Gases pass in and out of a leaf through the
iVinArrow [24]

Answer:

a) stomata

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The stomata are little pores / doorways / openings that have the express purpose of allowing gases in and out. Without this, plants would not be able to fix carbon, which is essential in respiration.

Why not c or b: The xylem and phloem channel water through the plant, not gases.

Why not d: The cuticle is the waxy outer layer of the leaf meant to protect it, not allow gases through.

3 0
3 years ago
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