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Brut [27]
3 years ago
8

What is the source of the bacteria in the culture tube in model 1? 2. how many genetic variants of

Biology
1 answer:
Sholpan [36]3 years ago
8 0

The source of bacteria in the culture tube in model 1 is from a swab of a desktop. Moreover, there are four variants in the E. coli culture from the initial swab and the variants of E.coli found on the dish grown with triclosan are evolution and selection.

 

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What blood types are possible for a child whose parents both have AB blood type?
erma4kov [3.2K]

Answer:

-blood type a

-blood type b

-SOMETIMES type o but very rarely.

Explanation:

Each biological parent donates one of their two ABO alleles to their child. A mother who is blood type O can only pass an O allele to her son or daughter. A father who is blood type AB could pass either an A or a B allele to his son or daughter. While a child could have the same blood type as one of his/her parents, it doesn't always happen that way. For example, parents with AB and O blood types can either have children with blood type A or blood type B.

7 0
3 years ago
What are some possible consequences of a mutation? Give a specific example for each consequence you list.
Tju [1.3M]
Since all cells in our body contain DNA, there are lots of places for mutations to occur; however, some mutations cannot be passed on to offspring and do not matter for evolution. Somatic mutations<span> occur in non-reproductive cells and won't be passed onto offspring. For example, the golden color on half of this Red Delicious apple was caused by a somatic mutation. Its seeds will not carry the mutation.
</span>

A single germ line mutation can have a range of effects:

<span><span>No change occurs in phenotype.
Some mutations don't have any noticeable effect on the phenotype of an organism. This can happen in many situations: perhaps the mutation occurs in a stretch of DNA with no function, or perhaps the mutation occurs in a protein-coding region, but ends up not affecting the amino acid sequence of the protein.</span><span>Small change occurs in phenotype.
A single mutation caused this cat's ears to curl backwards slightly.</span><span>Big change occurs in phenotype.
Some really important phenotypic changes, like DDT resistance in insects are sometimes caused by single mutations. A single mutation can also have strong negative effects for the organism. Mutations that cause the death of an organism are called lethals — and it doesn't get more negative than that.</span></span>
4 0
4 years ago
The range of temperatures in which an insect is able to live and reproduce is one element of that organism's ___________________
Karo-lina-s [1.5K]
The range of temperatures in which an insect is able to live and reproduce is one element of that organism's niche, a description of its ecological requirements.
4 0
3 years ago
2 Explain why fossil fuels contain large amounts of carbon compounds.
Korvikt [17]

Fossil fuels release carbon dioxide gas when they burn which adds to the greenhouse effect and increases global warming. Of the three fossil fuels, for a given amount of energy released, coal produces the most carbon dioxide and natural gas produces the least.

Did this help?

4 0
3 years ago
A nurse obtains a health history from a mother who son is taking methylphenidate. she reports that he is having hallucinations.
FromTheMoon [43]

Methylphenidate refers to a CNS stimulant mainly used in the treatment of ADHD (attention deficit hyperactivity disorder) in children between the age of 6 to 12, adults up to the age of 65, and adolescents. It can also be used in the treatment of narcolepsy.  

However, the application of the drug may also bring some side-effects with it. Some of the common side-effects related to medicine are decreased appetite, headache, hallucinations, sweating, fever, dizziness, increased heart rate, weight loss, and others.  

In the given case, due to the application of the drug, the child is having hallucinations. Thus, in the given case, the nurse should recommend the client to report the manifestations as quick as possible, and discontinue the use of medicine.  


7 0
3 years ago
Read 2 more answers
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