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gtnhenbr [62]
3 years ago
5

A chemical bond resulting from the loss or gain of electrons and the subsequent attraction of oppositely charged atoms

Biology
1 answer:
kolbaska11 [484]3 years ago
5 0
Polar bonds are when negatives and positives are attracted to eachother
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I REALLY NEED HELP. I DO NOT GET THIS AT ALL. PLEASE HELP ME. IT WILL BE GREATLY APPRECIATED.
kati45 [8]

Answer:

The test cross is shown below

      T         T

t      Tt         Tt

t       Tt         Tt

The alleles shown in the vertical side (tt) are recessive and come from the male parent. The alleles TT are dominant and come from the female parent.

For the variety of offsprings to be 100% tall, the recessive parent had to be crossed with a homozygous dominant parent.  If the female was heterozygous with which the cross was done,then there would be small tomato plants in the offspring generation.

3 0
3 years ago
explain how repressible and inducible operons differ and how those differences reflect differences in the pathways they control
Sonja [21]

Answer

Operons are cluster of coordinated genes, including structural genes, an operator gene, and a regulatory gene.

Explanation:

In the The repressible operons, The transcription is usually on and repressor is in inactive form, So the specific genes are transcribed. While a regulatory molecule act as corepressor and binds to repressor protein to activate it. The repressor protein cause the inactivation of repressible operon (as the name indicate). E.g., Tryptophan Repress the trp operon.

A high level of product act as regulatory molecule (Corepressor) and turn off the operon, So anabolic pathways or synthesis of essential components are controlled by repressible operon.

In the Inducible operons, the transcription is usually off and repressor is in active form. So there is no transcription of genes. Specific Metabolite cause the activation of operon  e.g lactose cause the induction of lac operon.

As a metabolite induces the operon, So they control the Metabolic pathways or breakdown of a neutrient.

7 0
3 years ago
Name the stage of meiosis
inn [45]
I think it's A becuse the stageof meiosis is cytokinsis
8 0
3 years ago
Which of the following grow directly from a plant’s stem?
tigry1 [53]

Answer:

Petiole leaves grow directly from a plant's stem

5 0
3 years ago
All of the populations of different species that occupy and are adapted to a given area are referred to by which term?
Natasha2012 [34]
<span>All of the populations of different species that occupy and are adapted to a given area are referred as a community.

In a community, there will be many populations of different species. Population is a group of individual in a certain area. The more species in the community, the more complex it is.</span>
6 0
3 years ago
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