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muminat
3 years ago
9

True-breeding pea plants always

Biology
1 answer:
frez [133]3 years ago
8 0

Answer:

When a single trait is being studies, a test cross is a cross between an individual with the dominant phenotype but of unknown genotype (homozygous or heterozygous) with a homozygous recessive individual. If the unknown is heterozygous, then approximately 50% of the offspring should display the recessive phenotype.

Explanation:

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What type of training does a technician in the field of diagnostics usually require?
Nataliya [291]
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4 0
4 years ago
Read 2 more answers
Which of the following governs the opening and closing of stomata?
Serjik [45]

Answer:

isn't there supposed to be an option mentioning guard cells tho :/

Explanation:

3 0
2 years ago
Smooth muscle is characterized by all of the following EXCEPT ________. a) it appears to lack troponin b) there are noncontracti
larisa86 [58]

Answer:

There are more thick filaments than thin filaments. (Ans. D)

Explanation:

Smooth muscle doesn't contain the calcium binding protein troponin. In smooth muscle, contraction is initiated by a calcium regulated phosphorylation of myosin, rather than a calcium activated troponin system.

The intermediate filaments are connected to each other with the help of dense bodies, which are attached to adherens junction in the cell membrane of the smooth muscle cells which are known as sarcolemma.

Smooth muscle cell lack sarcomeres because their filaments occur as a spiral and actin, myosin filaments are not regularly arrayed along the length of the cell.

In smooth muscle thin filaments occurs more than thick filaments.

So, the answer is D.

8 0
4 years ago
Looking through a microscope, you see a cell forming a cell plate during cytokinesis. Which cell are you looking at?
SashulF [63]
If a cell plate is seen being formed, then that would mean that a cell wall would be in the process of forming thus you would be looking at a PLANT CELL.
6 0
4 years ago
What element is in all proteins/amino acids?
a_sh-v [17]
Nitrogen I think that you are asking about
Still the main basic elements that make up living organisms are in order of presence Oxygen - Carbon - Hydrogen - Nitrogen
And mostly alll of proteins and definitely amino-acids contain carbon, nitrogen, and hydrogen.
6 0
3 years ago
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