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maks197457 [2]
3 years ago
5

A certain mutation in the human chromosome number 9 causes part of the chromosome to break and reattach itself in a reverse mann

er. What kind of mutation is this?
a.chromosomal duplication
b.chromosomal inversion
c.chromosomal deletion
Biology
1 answer:
denis-greek [22]3 years ago
6 0
The answer is b. chromosomal inversion

Chromosomal inversion is a point mutation which means the mutation only involves a single chromosome. This happens when two breaks occur within the strand freeing the single chromosome to move. The single chromosome that breaks off rotates 180 degrees before reattaching. The chromosome "inverts" itself, that's why the mutation is called inversion.
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Ganezh [65]
Secondary succession because it was previously abandoned but since its been found theres a new ecosystem growing . ( u could word it a bit differently but it’s definitely secondary succession )
7 0
3 years ago
Domestic cats have 38 chromosomes in their diploid cells. If a diploid cat cell enters meiosis, how many chromosomes and double-
sdas [7]

Answer:

Meiosis is a reduction division of diploid cells.(2n) Chromosomes numbers are reduced with each successive division stages  of meiosis 1 and 2, to haploid(n).

Cats  have  38 diploid  somatic (body)chromosome (2n) in the somatic cells  and are reduced to 19  new   varied haploid cells (n) of chromosomes in the gametes.

In cats, as in other mammals, during spermatogenesis in (seminiferous tublule of testis) and oegensis(in the ovaries);<u>meiotic  reduction division</u> reduced the diploid  somatic chromosomes to haploid chromosomes  in  sex gametes.

Therefore 38 chromosomes will be in  the somatic chromosomes, while the sex gametes, with double-helical molecules of DNA, at the end of meiosis II will  have 19 chromosomes, half of the somatic chromosomes.

Explanation:

3 0
4 years ago
Bees are observed flying from one garden to the next pollinating plants. Which type of plants could these be? A.mosses B.ferns C
irinina [24]
The answer is D. The first two arent pollinated by bees, 
6 0
3 years ago
Atom A and Atom B have the same number of protons and neutrons, but they do not have the same number of electrons. Which stateme
kolezko [41]

Answer: C- The atoms have different atomic numbers

Explanation:

6 0
3 years ago
Read 2 more answers
Match the enzymes with the molecules they help break down<br> a. Amylase<br> b. Pepsin<br> c. Lipase
Vika [28.1K]

Answer:

The correct  matches are given as follows:

a. Amylase - Starch

b. Pepsin - Protein

c. Lipase- fats

Explanation:

The digestion can be defined as the breaking down of the complex compounds of food into simpler compounds for their better absorption. There are various enzyme that help in the process of digestion. Amylase, pepsin, and lipase are enzymes.  The amylase is an enzyme responsible for breakdown of starch. The pepsin is responsible for the breakdown of protein into amino acids. The lipase is responsible for breakdown of fats.

3 0
3 years ago
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