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AfilCa [17]
3 years ago
9

What happens when lactose is E. Coli’s only food source

Biology
1 answer:
AnnZ [28]3 years ago
5 0
The presence of lactose enables the lac operon genes to function. 
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True or false: <br><br> Mollusks are more closely related to roundworms than to annelids.
erik [133]

Answer:

False

Explanation:

Annelids are actually more closely related to species within the mollusk phylum than they are to their worm cousins in the flatworm and roundworm phyla. Although they look quite different on the outside, mollusks and annelids share a more recent common ancestor than roundworms and annelids.

8 0
3 years ago
Which of the following describes a drug target?
Butoxors [25]

Answer:

A. The molecule to which a drug binds

Explanation:

4 0
2 years ago
What determines the sequence of the mRNA codons?
TEA [102]

Answer: DNA

Explanation:

mRNA is the complement of the DNA template strand. Transcription (process that makes mRNA) requires DNA and nucleotides (A,U,G and C)

5 0
3 years ago
Why was soil in wheat farms so much more vulnerable to erosion?
erica [24]

Explanation: The potential soil erosion increases if the soil has no or very little vegetative cover of plants/grass and/or crop residues. Plant and residue cover protects the soil from rain impact and splashes from it. It tends to slow down the movement of runoff water and allows excess surface water to infiltrate.

I hope this helps you! Have a nice day or night!!

5 0
2 years ago
Each orientation of chromosomes produces gametes with the same genetic information from each parent.
oksano4ka [1.4K]

Answer: a) true

Explanation:

The goal of mitosis is to produce daughter cells that are genetically identical to the mother cell, without a single extra or missing chromosome. Meiosis, on the other hand, is only used for one purpose in the human body: the production of gametes or sex cells, i.e. sperm and eggs. The question is oriented to mitosis, <u>in which prior to this cell division, the cell duplicates its DNA</u> so that each daughter cell then inherits the genetic material. That is, the cell originally possesses 23 chromosomes, they duplicate to a total of 46 so that then each daughter cell receives 23.

The metaphase is the second phase of mitosis and meiosis that occurs after prophase where the envelope is lost and microtubules of the achromatic spindle (also called meiotic or mitotic) appear.

During metaphase, the chromosomes align themselves in the middle of the cell and this balanced midline spindle alignment is due to the equal and opposing forces generated by the kinetochore brothers.

Then during metaphase, the chromosomes will line up in the center of the cell to be separated and go each to a different daughter cell. But the moment they're found there, each orientation of chromosomes produces gametes with the same genetic information from each parent. <u>Because because there have been no changes or mutations in the chromosomes, they have duplicated and have the same genetic information.</u>

6 0
3 years ago
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