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Jobisdone [24]
3 years ago
6

Scientists are looking to determine the primary productivity of a lake by analyzing its oxygen net primary productivity. How are

scientists able to measure how much oxygen is used during a plant’s cellular respiration processes?(1 point)
by observing cellular respiration under bright light conditions

by observing cellular respiration only when photosynthesis occurs

by observing cellular respiration by studying biomagnification

by observing cellular respiration under the absence of light
Biology
1 answer:
inessss [21]3 years ago
8 0

Answer:

Just took this - it is: by observing cellular respiration under the absence of light.

Explanation:

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Regulatory proteins bind to _____. the operator the lactose-utilization genes the regulatory gene RNA polymerase transcription f
jarptica [38.1K]

Answer:

Regulatory gene

Explanation:

Transcription is one of the major processes that occurs during gene expression. It is the transfer of the genetic instructions in DNA to mRNA. A strand of mRNA is made using complementary base pairs.

However, there is need for gene expression to be regulated.

Gene regulation refers to the mechanism that acts to induce or repress the expression of a gene. These include structural & chemical changes to the genetic material, binding of proteins to specific DNA elements to regulate transcription. These proteins that influences transcription by binding to specific nucleotide sequences (DNA segments/gene) are referred to as REGULATORY PROTEINS and those involved in regulating transcription of genes are called TRANSCRIPTION FACTORS.

Regulatory proteins controls the rate and manner of gene expression by binding to specific genes, thus, making it easy or hard for RNA polymerase (enzyme that attaches to DNA to synthesize mRNA molecule) to bind to the promoter of that gene.

Transcription factors (regulatory proteins) that promote gene transcription are called ACTIVATORS while those that decrease are called REPRESSORS.

5 0
3 years ago
Explain the role of enzymes in the formation and breakdown of macromolecules.
lora16 [44]

Answer:

Proteins are broken down by the enzymes pepsin and peptidase, and by hydrochloric acid. Lipids are broken down by lipases.

5 0
3 years ago
The trait that overpowers and always shows up when the allele is present. A.Hybird traits B.Dominant traits C.Recessive traits
jekas [21]

Answer:

B. Dominant traits

Explanation:

Dominant traits are as what the name implies, dominant over other traits. If something overpowers the other trait then it is a dominant trait.

7 0
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Discuss the characteristic of a grafted plant.
valina [46]
Instead of cross-pollinating two plants and producing a hybrid seed, grafted plants use the roots and the bottom portion of one plant (rootstock) and attach it to a tender shoot (scion) from the top portion of another plant
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I believe the correct answer is b. patients access to education
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