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lana [24]
3 years ago
13

Search online to find at least two articles that have opposite opinions on the repeated breeding of pedigree dogs. Does one arti

cle seem more scientifically credible than the other? Explain your answer.
Biology
2 answers:
erik [133]3 years ago
6 0

Answer:

A veterinarian wrote an article stating his disapproval of some of the tactics used to breed pedigree dogs. He stated that pedigree dogs can be healthy, but because of inbreeding, they’re more likely to have health problems than other dogs. The author supported his statement with scientific studies.

A breeder with 20 years of experience wrote an article that was pro-breeding. He talked about his own success and shared his opinions on proper breeding techniques. Because the veterinarian used scientific facts to support his reasoning, his article seemed more scientifically credible to me.

Explanation:

SOVA2 [1]3 years ago
3 0

Answer:Advantage: Artificial selection could eliminate certain genetic diseases that will make organisms healthier.

Disadvantage: The traits that pass on to offspring may not be the most beneficial for the organism to survive in the wild. These are traits that people desire, and they’re suitable mostly for a domestic setting.

Explanation:

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Why are fossil fuels considered nonrenewable resources?
xeze [42]
They are considered nonrenewable resources because once they are used, they are gone forever, and we are using way more than the Earth can produce. Your answer would be B!

Have a nice day! :)
5 0
3 years ago
Read 2 more answers
Three different alleles (c1, c2, and c3) at the c locus exist in a hypothetical population of juniper trees. If the frequency of
prisoha [69]

Answer:

d

Explanation:

When considering the frequency of the potential alleles of a gene in a population, the total must add up to 1. Think of it like percentages. an allele frequency of 0.3 means 30% of the population carry it (out of a possible 100%).

We know that the frequency of c1 is 0.3. Lets take each option and see if it can be true

a) cannot be less than 0.3.  - false. It <em>could </em>be less than 0.3. For example, it could be 0.1, meaning the frequency of allele c3 would be 0.6 (because 0.3 + 0.1 + 0.6 = 1)

b) cannot be greater than 0.3. - false. It <em>could </em>be greater than 0.3. For example, it could be 0.5, meaning the frequency of allele c3 would have to be 0.2 (because 0.3 + 0.5 + 0.2 = 1)

c) is 0.7.  - false. It <em>can't </em>be 0.7, because that would mean that the frequency of c3 is 0. (0.7 + 0.3 = 1)

d) cannot be greater than 0.7. - true. It <em>cannot </em>be greater than 0.7, because  that would mean that the frequency of c3 is 0. (0.7 + 0.3 = 1)

5 0
3 years ago
Baron Constantin von Economo discovered the involvement of the posterior hypothalamus and the anterior hypothalamus in human ___
Leona [35]

Answer:

Wakefulness and sleep.

Explanation:

Hypothalamus may be defined as the small region of the brain that maintains the homeostasis of the body. The hypothalamus is divided into anterior hypothalamus and posterior hypothalamus.

The anterior hypothalamus of the brain is involved in the sleep activity of the organisms and releases the hormones also. The posterior hypothalamus is involved in the wakefulness of the individual.

Thus, the correct answer is wakefulness and sleep.

3 0
3 years ago
Would a muscle cell be able to produce a functional contraction if it lacked t-tubules?
hjlf

The answer would be no. T-Tubules or Transverse tubules are additions of the sarcolemma that infiltrate into the center of cardiac and skeletal muscle cells. There would be no functional contraction since it would not be capable to communicate or interconnect with the other cells.

7 0
3 years ago
RNA primers in Okazaki fragments are usually very short, less than 10 nucleotides and sometimes as short at 2 nucleotides in len
bagirrra123 [75]

Answer:

During DNA replication each parental DNA strand serves as a template to a new complementary strand. DNA polymerase is the main enzyme responsible for this process, it catalyzes the addition of nucleotides to form the new DNA chain.  

The complementary nature of the DNA strands, presents a difficulty for DNA replication: DNA polymerase catalyzes the polymerization of DNA only in the 5’ to3’ -in the leading DNA strand. Thus, the opposite DNA strand, the lagging strand, faced an obstacle that is solved by the Okazaki small fragments. The primase enzyme synthesizes small RNA fragments complementary to the lagging DNA strand. These RNA fragments serve as primers for the DNA polymerase. To remove this RNA primers and form a continuous complementary lagging strand, RNase H and DNAse ligase will further cut and join the DNA again.  

DNA polymerase has a higher processivity than primase, if processivity is the average number of nucleotides that it is capable to continuously add to the template strand. Primase dissociates from the template often during DNA replication as it has to constantly add new RNA primers to the strand.  

3 0
3 years ago
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