Answer: most similar to the frog the skin cell came from
Explanation:
I just took the test
1. amino group
2. hydrogen
3. carboxyl group
4. R group
Answer:
Amount remaining = 1.205 * 10²⁴ molecules of urea
Explanation:
The molecular formula of urea is CH₄N₂O. It has a molar mass of 60 g/mol.
Number of moles of urea present in 150 g of urea = mass/molar mass
Number of moles = 150 g/ 60 g/mol = 2.5 moles of urea
I mole of urea contains 6.02 * 10²³ molecules of urea
2.5 moles of urea will contain 2.5 * 6.02 * 10²³ molecules of urea = 1.505 * 10²⁴ molecules of urea
If 3 * 10²³ molecules are removed from 1.505 * 10²⁴ molecules of urea, amount remaining will be:
1.05 * 10²⁴ - 3 * 10²³ = (15.05 - 3) * 10²³ molecules of urea
Amount remaining = 12.05 * 10²³
Amount remaining = 1.205 * 10²⁴ molecules of urea
Answer:
A. To help sense objects outside the body
Answer:
This question is incomplete as it lacks image, however, it can be answered based on the description. The complete part of the question is:
" This process is known as dna _______. A.) transcription B.) translation C.) cloning D.) replication
The answer is D. replication
Explanation:
DNA replication is the process whereby a DNA molecule is duplicated to form to identical copies of itself. The process of DNA replication is very pivotal and must occur prior to any cell division.
This process follows the semi-conservative model in which the double-stranded DNA molecule unwounds into two separate single strands. The single strands are then used as template for the synthesis of another complementary strands by DNA polymerase enzyme. At the end, the two DNA molecules are identical in base sequence.
