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matrenka [14]
3 years ago
7

What do scientists mean when they refer to a

Biology
1 answer:
stellarik [79]3 years ago
6 0

Answer:

d.

Explanation:

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While handling preserved biological specimens what safety equipment should you be using ?
pogonyaev
B-thermal gloves
fire blanket is incase of fire 
latex gloves is to not get your hands dirty 
eye was is to wash your eyes
thermal gloves protects you from biological specimens.

4 0
4 years ago
Two true-breeding pea plants are crossed, one with purple flowers and the other with white. their offspring are
Verdich [7]
Knowing that purple flowers are dominant (have a higher percentage of passing certain information to offspring) and white a recessive (have a much lower chance of passing certain information to offspring) the plants of the F_{1} generation (first generation bread) will be all purple.

When a white-flowered pea reproduces with a purple-flowered pea all of the offspring will be purple.

When 2 offspring (purple-flowered) of the F_{1}generation breed, there is a 15% percent chance of offspring being white-flowered.


Answer:

\boxed{\bf~The~offspring~will~be~purple-flowered.}



Hope it helped,

Happy homework/ study/ exam!
6 0
3 years ago
George on one pair of his chromosomes has STRs of lengths 6 and 7, Stephen (his father) STRs of lengths 3 and 6, and Mary (his m
JulijaS [17]

Answer:

Stephen is not his biological father.

Explanation:

DNA fingerprinting is a technique use to determine the DNA sequence of an individual organism. Short tandem repeats are unique among the individuals ans used to identify the individual in population.

The George DNA fingerprinting shows that he has STRs length of 6 and 7. Stephen's STRs does not match with his son George whereas Mary shows some similarities with George STRs. This indicates that Stephen is not the biological father of George because the biological father's STRs must match with the children STRs.

Thus, the correct answer is option (a).

4 0
4 years ago
How does the structure of alveoli maximize gas exchange?
Bumek [7]

Answer:

The alveoli are sacks coated on their inner wall by white and sticky liquid, they can be more than a millimeter in diameter and surface active agent. In them there is the exchange of gases between O2 and CO2.

They are evaginations of the epithelium of the air ducts with a single opening for the gases to exit and enter, controlled by the action of a smooth muscle sphincter. Its walls, called alveolar septa, provide a large increase in the exchange surface.

3 0
4 years ago
Which does not cause DNA mutations?
Nikolay [14]
C i am guessing but i hope this helps
4 0
4 years ago
Read 2 more answers
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