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kumpel [21]
2 years ago
6

Which of these elements is rarely found in organic molecules? hydrogen oxygen barium carbon

Biology
1 answer:
Reptile [31]2 years ago
7 0

Answer: Carbon

Explanation: Organic molecules have hydrogen atoms connected to carbon atoms through covalent bonds. The simplest organic molecule, methane. It has three hydrogen atoms connected to <u>one carbon</u>.

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You know that the narrow-sense heritability of milk production in Ayrshire cattle is 0.587. You perform an experiment where you
Paha777 [63]

Answer:

Explanation:

Narrow sense heritability - h​​​​2

​​​​​​selection differential - S

Selection differential is calculated from the difference between the population average and the parental population.

Breeder's equation:

Response to selection - R = h​​​​​​2S

Mean milk production of 10% cows for experiment = 8.9L/hr

Mean milk production of parental population = 5.1L/hr

Selection differential S= 8.9 - 5.1 = 3.8 L/hr

Response to selection = 0.587 × 3.8 = 2.23

3 0
2 years ago
Calculate how long it will take for one full base pair mutation to occur. Explain your reasoning with by constructing a mathemat
scoray [572]

Answer:

Since the gene mutates at a rate of 0.76 base pairs every 17.1 million years, to find out the time it would take for 1 base pair to mutate can be calculated by dividing 17.1 million years by 0.76

17,100,000 ÷ 0.76 = 22.5 million years

The following equation can be used to describe this:

μ = [(r2/N2) − (r1/N1)] × ln (N2/N1) = (f1 − f2) × ln (N2/N1)

r1 = the observed number of mutants at time point 1

r2 = the observed number of mutants at the next time point

N1 and N2 are the numbers of cells at time points 1 and 2

Hope that answers the question, have a great day!

5 0
2 years ago
Nelson, a schizophrenic patient, has just begun taking antipsychotic medication. he took his first dose about 12 hours ago, but
iogann1982 [59]
Wait and be patience for the medication, it could take some more time in certain cases
6 0
2 years ago
The following DNA is being replicated and the origin of replication is in the middle of the sequence and marked with three stars
xxTIMURxx [149]

Answer:

5'GATCGTAA3'

5'ATTCTAGA3'

Explanation:

As requested in the question above, the primers were presented with 8 nucleotides, with the nitrogenous bases of the DNA, and in the 5'-3 'direction.

Primers are small fragments of DNA that are used by DNA polymerase to form new strands. The primes attach to pieces on the ribbon, through the complementarity of the nitrogenous bases, serving as a template for the DNA polymerase to create the new ribbon.

DNA polymerase uses primers at the origin of replication, and can follow the path from the right or from the left, depending on the primers used, for this reason, this question has two answers.

8 0
2 years ago
Meiosis ensures the transmission of traits from one generation to the next. At the same time, it is a key process that introduce
rodikova [14]

Answer:

See the explanation below, what is the question you intend to ask anyway?

Explanation:

  • Meiosis transmit traits from one generation to the next. It the  key process that brings genetic variation into the traits that offspring inherit from their parents.  In the life cycle of an organism, meiosis is paired with the process of fertilization.
  • Meiosis produces two daughter nuclei with the same number of chromosomes as the parent cell as each other.The chromosomes are re-grouped during meiosis to form new combinations of genes. Genetic reunion is very important as a source of genetic variation.

5 0
2 years ago
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