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Vitek1552 [10]
3 years ago
9

The alternation of generations life cycle alternates between haploid and diploid stages. Describe the structures and processes t

hat occur in the haploid generation starting with the first haploid cell(s) to the last haploid cell(s). Do not include any diploid structures.
Biology
1 answer:
svlad2 [7]3 years ago
5 0

Answer:

Alternation of generations (also known as metagenesis) this type of life cycle that occurs in those plants and algae in the Archaeplastida and the Heterokontophyta that will have distinct haploid sexual and diploid asexual stages. A multicellular haploid gametophyte with n chromosomes alternates with a multicellular diploid sporophyte with 2n chromosomes is form in these group, made up of n pairs.

A mature sporophyte will produces haploid spores by meiosis, a process which reduces the number of chromosomes to half, from 2n to n.

In the haploid cell the spores germinate and grow into a haploid gametophyte. At maturity, the gametophyte produces gametes by mitosis, which does not alter the number of chromosomes.

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What happens when both numerator and denominator are negative?
jok3333 [9.3K]
The fraction will be positive . because negative and negative cancels
3 0
3 years ago
Can you identify the ploidy of different structures?
svetlana [45]

Answer:

The sporophyte generation is (diploid).

The gametophyte generation is (haploid) .

The embryo is (diploid) .

The megaspore is (polyploid) .

Explanation:

These shows cell division before recombination of gamete.

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describe how community residents and authorities can prepare for an earthquake and its aftermath. Review earthquake advice from
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5 0
3 years ago
If the planet were to cool in the future, snow may begin to accumulate in the head of a glacier more rapidly than it would melt
Phoenix [80]

Answer:

The glaciers will accumulate more in amount when the planet cools, and this will result in the slow expansion of glaciers, extending horizontally and downward, due to the pressure exerted by the glaciers. The glaciers will be rapidly accumulated in the glacier head in comparison to the zone of wastage, which covers the region below the snowline.  These glaciers moves at a fairly slow rate, under the influence of gravity.

As the planet cools, the terminus of the glaciers (glacier end or toe) will expand and will be distributed more outward and downward, and there will be more quantity of snow in a cool planet.

4 0
3 years ago
What phenomenon occurs in females as a result of x-chromosomes inactivation
Arada [10]

This happens early in embryonic development in females, where one of the two X-Chromosomes is randomly (and permanently) inactivated, as you said, in cells other than egg cells.

This phenomonon is actually called X-Inactivation.

X-Inactivation make sure that females, just like males, have a single functional copy of the X Chromosome in each and every one of their cells in their body.

Glad I could help, byee now

3 0
3 years ago
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