Which of the following accurately describes a typical human karyotype?

1 answer:

5 0

The answer is B.

A typical human karyotype has 23 types of chromosomes arranged from smallest to largest. In males and females 22 of these chromosomes look exactly the same and they are called autosomes. The 23rd pair of chromosomes is the sex chromosome which differentiates males from females. Females have 2 copies of the x chromosome. Males have a copy of both x and y chromosome to make the 23rd pair. 

Chromosomes can also have abnormalities that result to different conditions and identifiable traits. A most common chromosomal abnormality is the condition called Down Syndrome, where chromosome 21 has a third copy because of an abnormal cell division.

You might be interested in

Which of the following scenarios is an example of temporal isolation?

DedPeter [7]

Answer:

B. Black-eyed Susans and daisies used to be part of the same species. A random mutation in a subset of a population caused one group to release their pollen three weeks before the other, causing interbreeding to cease.

Explanation:

Temporal isolation, where temporal relates to time. So temporal isolation is the process where two populations will reproduce at different times/different seasons and therefore cause a split in species. In this case, we see the flowers release pollen at different times and caused a split into two distinct species.

7 0

2 years ago

4. Scientists classify clams as consumers. Which observation about clams provides the strongest evidence for this classification

Mars2501 [29]

Answer:

b, this is because a consumer, is something that consumes something, and the clam consumes the energy and nutrients when it filters the particles in from the water. Because it consumes these, it is a consumer for that reason. So, the answer is b. Hope this helps!!!

8 0

3 years ago

Most of the coal found on Earth today was formed during the Carboniferous and Permian Periods. About how old could a piece of co

Law Incorporation [45]

Answer: 298.9 million years old

Explanation: hope it helps luv ❤✨

5 0

3 years ago

D.SMALL INTESTINE 1. Name the building blocks of each major class of nutrients: complex carbohydrates (AKA polysaccharides like

Dima020 [189]

Answer:

Explanation:

1. Complex carbohydrates (AKA polysaccharides like starch)- monosaccharides linked together by glycosidic linkages

Fats (AKA triglycerides) - Fatty acids

Proteins- Amino acids.

2. Name the 3 portions of the small intestine in order - The Duodenum, Jejunum, and Ileum.

3. In which of these 3 portions does the greatest amount of nutrients absorption occur - Jejunum

6 0

2 years ago

Name 3 roles of men and women in traditional society. And both genres(men and women) were expected to:

lesya692 [45]

Women were expected to:
-be mothers and care for children
-cook for their families
-clean after their families
Men were expected to:
-work for financial security
-protect their families

6 0

2 years ago