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Mila [183]
3 years ago
5

The endosperm is a unique tissue to ______.

Biology
2 answers:
Feliz [49]3 years ago
8 0
I guess that the endosperm is a unique tissue to the flowering plants. (It helps in their reproduction).
seropon [69]3 years ago
8 0
The endosperm is a unique tissue to plants boi
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There are 25 individuals in population 1, all with genotype AA, and there are 40 individuals in population 2, all with genotype
german

Answer:

a. Genetic drift

Explanation:

  • When there is a change in the frequency of genes in a small population due to chance event as a result of which a few alleles disappear from the population, is known as genetic drift.
  • In the given situation, the population size is small i.e. 25 and 40 respectively and in both these populations, it can be seen that one of the population only has allele A whereas the other has allele a, and because of this it can be concluded that this situation must have arisen due to genetic drift.
  • The populations got established due to random sampling and then the progenies inherited only the alleles of the organism that reproduced and thus, the frequency of the other allele decreased and this is merely a chance event.
8 0
3 years ago
These are called multiallelic traits. If GGHHII was crossed with gghhii, what would the genotype for every offspring be?
GenaCL600 [577]

Answer:

In the crossing of individuals with multiallelic traits, the crossing of a GGHHII individual with a gghhii individual would produce offspring of hybrid individuals for all three traits whose genotype would be GgHhIi (option c).

Explanation:

The individuals GGHHII and gghhii are pure lines for each of the traits —multiallelic traits— they express, one of them having the three dominant traits and the other three recessive traits. The product of crossing two pure lines with dominant and recessive traits is an offspring of 100% heterozygous individuals.

This can be tested by making a Punnett square for this cross:

<u>GGHHII X gghhii</u>

Alleles     GHI        GHI

ghi         GgHhIi   GgHhIi

ghi         GgHhIi   GgHhIi

Thus the offspring in the cross of two individuals, dominant and recessive, for multiallelic traits G, H and I is GgHhIi

5 0
3 years ago
Using the table below, which of the materials would be able to scratch Quartz? Mohs Scale Index Mineral Hardness Common Objects
artcher [175]

Diamonds, Corundum, and Topaz would all be able to scratch quartz.

All three minerals above have a more increased number of hardness then quartz



7 0
3 years ago
Read 2 more answers
What happens to the z lines after contraction of the sarcomere?
ELEN [110]

Answer:

They became closer to each other.

Explanation:

When skeletal muscles contracts the Z lines that are at the end of every sarcomere became closer to each other due to the fact that the I bands that are attached to the Z lines and contains the myosin filaments move closer to each other interacting with the actin filaments and shorten the the H zone that is in the middle of the sarcomere. In other words, It all becomes compact during a contraction.

8 0
3 years ago
Plz, answer fast need in max 15 minutes plz
baherus [9]
C (thermal energy to mechanical energy)
8 0
3 years ago
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