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sergij07 [2.7K]
3 years ago
6

Which process can introduce a new phenotype into a population?

Biology
1 answer:
siniylev [52]3 years ago
5 0

Answer:

Natural selection (Reproductive selection.)

Explanation:

This can change an alle over time and introduce new phenotypes into a population.

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Some people cannot digest milk products because they lack an enzyme to break down lactose in milk.
Nady [450]

Answer:

Lactase

Explanation:

7 0
2 years ago
Cells with a full set of chromosomes are referred to as diploid or 2n, whereas cells with half the chromosomes are haploid or n.
Papessa [141]

Answer:

  • Diploid → Prophase, metaphase, and anaphase
  • Haploid → Telophase

Explanation:

During prophase I,  chromosomes get condensed. Each of the chromosomes gets in pair with its homologous one. They do so to make the crossing-over possible, a stage where they interchange their parts → 2n

During metaphase I, each of the homologous pairs is driven to the equatorial plane, where they randomly line up → 2n

During anaphase I, occurs the independent separation of homologous chromosomes that migrate to opposite poles of the cell. This separation generates different chromosomal combinations in the daughter cells. There are two alternatives per homologous pair → 2n  

In telophase I, half of the chromosomes are already in one of the poles, while the other half is on the other pole. Each group of chromosomes has now half the number of the original cell. The nuclear membrane forms again in each pole → n

Finally, occurs cytokinesis, which involves the invagination of the cell membrane and cytoplasmic division.

The two new cells are ready for meiosis II.

3 0
2 years ago
If an electron Is gained, the atom has a ___ charge.
UNO [17]

Answer:

negative

Explanation:

electrons have negative charges and elements are usually neutral. so if you add a negative, it will make the atom have a negative charge. think of it as a seesaw, in an atom there are 10 protons and 10 electrons, if an 11th electron friend joins, the seesaw will lean more towards the negative side now. :) hope i helped

7 0
3 years ago
Read 2 more answers
The diploid cells of a radish plant contain 18 chromosomes. How many chromosomes are in a radish plant's haploid cells?
timofeeve [1]

Answer:

9

Explanation:

The diploid chromosome number for a radish is 18 and the diploid chromosome number for cabbage is also 18. The haploid number for these species is nine. Therefore, the gametes of the radish and cabbage contain nine chromosomes.

3 0
3 years ago
A drug-resistant bacteria, virus, fungus, or parasite?
qaws [65]

Answer:

Superbugs

Explanation:

Superbugs are strains of bacteria, viruses, parasites and fungi that are resistant to most of the antibiotics and other medications commonly used to treat the infections they cause.

8 0
2 years ago
Read 2 more answers
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