Answer:
If crossing plants with hairy leaves and smooth leaves produces plants with smooth leaves in F1, the phenotypic ratio of plants with smooth leaves:hairy leaves in F2 will be 3:1.
Explanation:
It is assumed that, if the first descendants of this cross presented smooth leaves, this represents the dominant characteristic.
If in the crossing of two plants, the parental generation consists of two <u>pure plants for the characteristic aspect of the leaf</u>, one with hairy leaves (s) and another with smooth leaves (S), the first filial generation (F1) will be of hybrid plants with a phenotype of smooth leaves (Ss), which represents the dominant characteristic.
<u>Parental Generation</u>:
- Smooth leaves SS
- Hairy leaves ss
<u>Punnett Square F1</u>
<em>Alleles S S</em>
<em>s Ss Ss</em>
<em>s Ss Ss</em>
F1 : 100% plants with smooth leaves Ss
The second filial generation (F2) results from the crossing of F1 individuals, so:
<u>Punnett Square F2</u>
<em>Alleles S s</em>
<em>S SS Ss</em>
<em>s Ss ss</em>
The result of the offspring in F2 is:
<u>Genotype
</u>
- <em>Pure smooth leaves SS 25%</em>
- <em>Smooth hybrid leaves Ss (heterozygous)
: 50%</em>
- <em>Pure hairy leaves ss: 25%</em>
Genotipic ratio: pure smooth leaves:hybrid:pure hairy leaves 1:3:1
<u>Phenotype</u>
- <em>Smooth leaves SS + Ss: 75%</em>
- <em>Hairy leaves ss: 25%</em>
So the phenotypic ratio of smooth leaves: hairy leaves will be 3:1.
How are they formed<span>? a hydrogen bond is formed when a charged part of a molecule having polar covalent bonds forms an electrostatic (charge, as in positive attracted to negative) interaction with a substance of opposite charge. Molecules that have </span>nonpolar covalent bonds<span> donot form hydrogen bonds.</span>
The genetic code as translated is for m-RNA not DNA. The messenger RNA carries the code into the cytoplasm where protein synthesis occurs.
The answer would be C, chemical messenger. This signals to other cats that that particular spot belongs to them; it serves as a warning. Hope this helps!
~Ash
Answer:
The star is called <u>protostar</u>.
Explanation:
A protostar is a youthful star that is as yet assembling mass from its parent sub-atomic cloud. The protostellar stage is the most punctual one during the time spent outstanding evolution. For a low mass star (for example that of the Sun or lower), it keeps going around 500,000 years.
The stage starts when an atomic cloud part first falls under the power of self-gravity; and an obscure and weight bolstered center structures inside the crumbling section. It closes when the infalling gas is drained, leaving a pre-principle arrangement star, which agreements to later turn into a fundamental grouping star at the beginning of hydrogen combination.