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postnew [5]
3 years ago
15

Morgan and his fruit flies are famous for two discoveries. What are they and how do they help us in understanding genetics?

Biology
1 answer:
ch4aika [34]3 years ago
5 0
Thomas Hunt Morgan, who studied fruit flies, provided the first strong confirmation of the chromosome theory. Morgan discovered a mutation that affected fly eye color. ... Based on the inheritance pattern, Morgan concluded that the eye color gene must be located on the X chromosome.
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Gram-positive and gram-negative bacteria are most commonly differentiated in the laboratory by __________.
alisha [4.7K]
Gram staining
Gram-positive turns pink or red
Gram negative turns dark blue or purple
8 0
3 years ago
The correct answer will get Brainliest!
Leto [7]

Answer:

Diversity of the community = 2.097

Explanation:

Given:

Number of pitch pines = 134

Number of douglas firs = 24

Number of red pines = 53

Find:

Diversity of the community

Computation:

Simpson's diversity index = N(N-1)/Σn(n-1)

Particular              n n(n-1)

Pitch pine         134       17822

Douglas firs       24 552

Red pine            53  2756

Total       N=211 21130

So,

D= [211(211-1)] / 21130

D = 2.097

Diversity of the community = 2.097

7 0
3 years ago
Indiana University biologist Dr. Alfred Kinsey conducted a series of sexuality studies during the 1940s and found that:
melamori03 [73]

Answer:

Sexuality exists on a continuum.

Explanation:

The American biologist,  Dr. Alfred Kinsey had incorporated in the Institute for Sex Research. He worked on a series of sexuality studies during the 1940s in Indianan university.

Dr. Alfred Kinsey explained that the sexuality exists on a continuum. The person's sexual orientation generally based on the experience and response at that time.

Thus, the answer is sexuality exists on a continuum.

6 0
3 years ago
A membrane that only "lets" certain molecules in while keeping other molecules out is ___ ___.
Zanzabum
It is selectively permeable
8 0
3 years ago
Read 2 more answers
A strand of DNA contains 10% Guanine, what<br> percent is Adeninc?
Wittaler [7]

Answer:

40% is Adenine.

Explanation:

In DNA, Guanine pairs with Cytosine and Adenine pairs with Thymine.

If a strand of DNA contains 10% Guanine, that means that it also contains 10% Cytosine.

10% G + 10% C = 20%

100% - 20% = 80% (Adenine and Thymine)

80% ÷ 2 = 40%

The strand of DNA contains 10% Guanine, 10% Cytosine, 40% Adenine, and 40% Thymine.

5 0
3 years ago
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