Answer:
The Idaho giant salamander is the darkest and most intricately blotched of the giant salamanders.[2] They vary between brown, purple, tan, grey, and a copperish color. Tiger salamanders and Idaho giant salamanders have superficial resemblance pertaining to size and shape, but the costal grooves and foot tubercles are significantly different between the two species. This salamander has a defining thick head and body and a fourth toe on the hind foot with only three segments. Adults are typically 20 cm in length[3] but may vary between 7 and 11.75 inches long, but can be observed around 13 inches.
Explanation:
cite:
https://en.wikipedia.org/wiki/Idaho_giant_salamander
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Answer:
<em>The probability of forming a "Y" gamete is 50%. The probability of forming a "y" gamete is 50%.</em>
Explanation:
Mendel was an Austrian monk whose findings led to make the foundation of genetics. Hence, Mendel is known as the father of genetics. He formulated two laws based on the researches he made:
- Law of segregation
- Law of independent assortment
According to the law of segregation, alleles segregate independently at the time of gamete formation. There is an equal chance for a gamete to carry the dominant or the recessive allele.
Hence, the probability of a gamete carrying a 'Y' or a 'y" allele will be 50% each.
Nitrogen (N) and Oxygen (O)
The chemical formula is N_2O
Answer: Fertilization >> Cleavage >> Gastrulation >> Organogenesis
Explanation:
While differences are seen depending on the species under study, embryonic development follows a relatively stereotyped pattern, as follows:
1) Fertilization: The zygote (first cell, technically an unicellular embryo) is formed by the fusion of the male and female gametes.
2) Cleavage: The zygote undergoes a series of cell divisions, resulting in a multicellular embryo (usually called a blastula).
3) Gastrulation: The blastula undergoes a series of transformations (mediated by processes like cell differentiation, migration, and/or shape change) which results in the acquisition of core anatomical features such as the main germ layers (ectoderm and endoderm, mesoderm if present) and rudiments of the digestive tract.
4) Organogenesis: After gastrulation, the embryo has acquired an anatomical outline reminiscent of the mature individual. Now, specific organs begin development from precursor populations called “primordia”.
Note that, in practice, the aforementioned stages may temporally overlap.