Obsidian is a rock with glass-like characteristics. Obsidian is formed by rapid what and why?

1 answer:

7 0

(d) cooling
if obsidian is glasss like it is very logical that a cooling process is needed! If I was u I'd go cooling, d
:)

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Explain why some species are able to tolerate polyploidy and others can not. You may provide specific examples to support your a

lidiya [134]

<h2>Tolerate Polyploidy</h2>

Explanation:

Various species display various degrees of resilience for polyploidy. For instance, polyploids structure at moderately high recurrence in blossoming plants (1 for every 100,000 people), recommending that plants have a strikingly high resistance for polyploidy. This is likewise the situation for certain types of fish and frogs.
Polyploidy is normal in plants than in creatures in light of the fact that in creatures sex assurance component includes number and type sex chromosomes.
Polyploidy will meddle with this component and subsequently it is seen once in a while in animals.This vegetative proliferation empowers increase of polyploid plants.
Chromosomes can be divided by by their such as size,banding design number, centromere position.
Autosomes or "body chromosomes" (the entirety of the non–sex chromosomes) are commonly found in the human karyotype sorted out in rough request of size from biggest (chromosome 1) to littlest (chromosome 22).
The number and presence of chromosomes in a phone is known as a karyotype.
A karyotype must be seen and examined with a magnifying lens. Karyotype investigation can uncover anomalies, for example, missing chromosomes, additional chromosomes, erasures, duplications, and translocations.

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3 years ago

If B represents the allele for black eyes (dominant) and b represents the allele for orange eyes (recessive), what would be the

Nuetrik [128]

Answer:

1 black : 1 orange

Explanation:

This is a typical monohybrid cross involving a single gene coding for eye color in MendAlien. The allele for black eyes (B) is dominant over the allele for orange eyes (b). In an heterozygous state, Bb i.e. combination of both dominant (B) and recessive (b) alleles, the MendAlien will be phenotypically black.

In a cross between a heterozygous MendAlien (Bb) and an orange-eyed MendAlien (bb), two of the offsprings will have a Bb genotype and be phenotypically black-eyed which the other two will have a bb genotype and be phenotypically orange-eyed. Thus, a phenotypic ratio of 2 Bb : 2 bb will be obtained.

This is also equal to 1:1 i.e. 1 black-eyed : 1 orange-eyed.

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These have monomers known as nucleotides.

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Scholarship..............

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Which statement describes DNA

Romashka [77]

Answer:

DNA stores an organism’s genetic code.

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What is Natural selection

icang [17]

Answer:

This term was created by Charles Darwin based off his research on evolution

Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.

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