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amid [387]
3 years ago
8

In a lab diagnosis, a pathologist observed a test sample from a tuberculosis patient under a high-power microscope. Which type o

f bacteria is it if rod shaped structures were observed?
Biology
1 answer:
Allushta [10]3 years ago
7 0
Mycobacterium bacteria is rod shaped. The specific species that caused TB is mycobacterium tuberculosis.
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You have a plant with yellow seeds, which express a dominant phenotype. How would you determine the plant's genotype? Conduct a
Archy [21]
The answer is <span>Conduct a test cross with a purebred recessive plant. 

</span>

Test cross is the cross between an organism with unknown dominant genotype and an organism with known recessive genotype.

<span>Since dominant trait results from a dominant allele, the test cross can determine if an unknown genotype is heterozygous and homozygous dominant. </span>

If A is dominant allele, and a is recessive allele, then AA is dominant homozygote, Aa is a heterozygote, and aa is recessive homozygote.

<span>According to the Punnett square, if all of the offspring are heterozygote (Aa), then unknown genotype is dominant homozygous (AA). If half of the offspring are the heterozygote, and the other half are recessive homozygote, then the unknown genotype is heterozygote (Aa).</span>

6 0
3 years ago
Suppose that RNA polymerase was transcribing a eukaryotic gene with several introns all contained within the coding region. In w
Elenna [48]

Answer: synthesize a pre-rRNA 45S (35S in yeast), which matures and will form the major RNA sections of the ribosome. RNA polymerase II synthesizes precursors of mRNAs and most snRNA and microRNAs. RNA polymerase III synthesizes tRNAs, rRNA 5S and other small RNAs found in the nucleus and cytosol.

Explanation:

3 0
2 years ago
Which question did Charles Darwin attempt to answer?
bogdanovich [222]

Answer:B

Explanation:

6 0
2 years ago
Read 2 more answers
Briefly describe the main hormonal and physiological events of each of the following:the uterine cycle
Hunter-Best [27]

Answer:

Menstruation, the follicular phase, ovulation and the luteal phase.

Explanation:

Menstruation, the follicular phase, ovulation and the luteal phase are the four events or phases of the menstrual cycle. Luteinizing hormone, follicle-stimulating hormone, and the female sex hormones i.e. estrogen and progesterone are the types of hormones that controls the uterine cycle. Each event in the uterine cycle has its own significance in the female body.

8 0
2 years ago
If a cell culture contains 400 cells/ml at time = 0 and it has a generation time of 30 minutes, how many cells (cells/ml) will b
Semmy [17]

Answer:

The answer to your question is: after two hours there will be 6400 cell/ ml

Explanation:

Data

Bacteria t = 0; 400 cells/ml

generation time = 30 minutes

# cells after two hours = ?

                                 # of bacteria               time

                                     400                            0

                                      800                         30 min

                                   1600                           60 min

                                   3200                           90 min

                                   6400                          120 min

7 0
3 years ago
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