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2 years ago

A scientist associated with antibiotics is

Biology

1 answer:

Maru [420]2 years ago

8 0

Answer:

The modern medical era began when an absent-minded British scientist named Alexander Fleming returned from vacation to find that one of the petri dishes he forgot to put away was covered in a bacteria-killing mold. He had discovered penicillin, the world's first antibiotic.

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What do plants release into the air during transpiration?

astraxan [27]

Or the answer is

water vapor

5 0

3 years ago

Read 2 more answers

In the family tree below, people with the recessive trait of attached earlobes are shaded gray

serious [3.7K]

<h2><u>Full Question:</u></h2>

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.

What must be true about the person labeled "A"?

A. It is a male with at least one dominant allele.

B. It is a male with two dominant alleles.

C. It is a female with at least one dominant allele.

D. It is a female with two dominant alleles.

<h2><u>Answer:</u></h2>

Its a male with atleast one dominant allele.

Option A.

<h3><u>Explanation:</u></h3>

The gene for the attached earlobe is recessive while the gene for the free earlobes is dominant. In the phylogenetic tree, we can see that both the father and mother aren't having attached earlobes. So both of them are having atleast one dominant allele which makes them have free earlobe.

In the F1 offsprings, one of the female and a male is having free earlobes. So both of them have atleast one dominant allele. The 2nd female is having an attached earlobe. So both the recessive allele have come form one parent each. So both of them are heterozygous.

Thus, the male marked as A atleast have one dominant allele. He can be a homozygous dominant, but the probability is 25%.

8 0

3 years ago

What is the purpose of meiosis? What type of cell is created (list all the scientific names)?

Akimi4 [234]

Meiosis is when two parent cells give birth to two sister cells.

The cell that is created is a sister cell.

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Hope this helped you.

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6 0

2 years ago

Studies showing that identical twins are more likely to have similar weights/body compositions than fraternal twins are an indic

Novosadov [1.4K]

Answer:

True

Explanation:

<em>The latter studies truly showed that some factors other than genetic predisposition play a role in obesity.</em>

The composition of the genome of an individual might predispose such individual to a higher risk of being obese. However, that such individual will become obese depends on some other factors, the most important being the kind of lifestyle the individual lives.

A lifestyle such as eating foods high in fat content, not eating adequate fruits, not eating eating adequate vegetables and drinking a lot of alcohol can cause someone to be obese apart from genetic predisposition.

4 0

3 years ago

Please answer both parts ASAP. Please and thank u

Maru [420]

1st answer D
2nd answer D

4 0

2 years ago