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postnew [5]
3 years ago
15

Why are some samples stained before viewing them?

Biology
1 answer:
leonid [27]3 years ago
3 0
Without staining them you wouldn't be able to see them
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The pathway water takes to reach the xylem cells in which it passes through each cell of the cortex is the ___ route. intracellu
stealth61 [152]
A. Intracellular
The pathway water takes to reach the xylem cells in which it passes through each cell of the cortex is the intracellular route.
5 0
3 years ago
Which type of cells has a chloroplast?
galben [10]

Answer:

plant cell

Explanation:

Animal cells do not photosynthesize (with the exception of one animal but biology is INCREDIBLY diverse and creative.)

4 0
3 years ago
the nontemplate strand of a portion of a gene reads 5'ACTGGTTCA. What will the sequence of the resulting transcript for this por
konstantin123 [22]

Answer:

DNA template sequence:  

5' TGACCAAGT 3'

RNA antisense sequence: 3' UGACCAAGU 5'

>>> RNA sense sequence (transcript) : UGAACCAGU

Explanation:

In the DNA molecule, four types of nitrogenous bases are found: cytosine (C), and guanine (G), adenine (A) and thymine (T). In DNA the bases pair up with each other in the following ways: A pairs with T by two hydrogen bonds, while C pairs with G by three hydrogen bonds. In RNA (i.e., transcript sequence), T is replaced by uracil (U). Moreover, the RNA nucleotide sequence is read in the direction 5' to 3'.

7 0
3 years ago
What causes movement of water through xylem
astra-53 [7]
Transpiration is the main driver
3 0
2 years ago
Which assumption must be correct for a population to be in hardy-weinberg equilibrium for a specific gene? see section 23.1 ( pa
Goshia [24]

There are five basic Hardy-Weinberg assumptions:

1. Random Mating -

2. No natural selection - all members of the parental generation survived and contributed equal numbers of gametes to the gene pool, no matter the genotype

3. No genetic drift (random allele frequency changes) - the population is infinitely large.

4. No gene flow - no new alleles were added by immigration or lost through emigration (no migration)

5. No mutation -  There must be mutation equilibrium.


7 0
3 years ago
Read 2 more answers
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