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Kazeer [188]
4 years ago
14

f pink snapdragons of the F1 hybrids (RW) are crossed with red snapdragons of the parent plant (RR), what will be the ratio of f

lowers produced in 40 offspring?
Biology
1 answer:
Mrrafil [7]4 years ago
8 0
Which organism belongs to more than one trophic level

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What structure is denoted by the number 5, and what is its function in the cell? Number 5 is pointing to the entire structure, n
OLga [1]

The pointed structure is known as rough endoplasmatic reticulum (RER), what's more, we can see that it is covered by dots that represent ribosomes. RER is covered of ribosomes that unite amino acids forming proteins, these proteins enter the RER and there are modified and later sent to the Golgi apparatus for final modifications and packaging.

6 0
1 year ago
"________ indicates the presence of white blood cells or other pus constituents in the urine."
timofeeve [1]
Inflammation of the urinary tract
7 0
4 years ago
Which of the following sequences shows a frameshift mutation compared to the wild-type mRNA sequence?
Butoxors [25]

Option C:

B. wild-type 5-AUGCAUACAUUGGAGUGA-3 mutant 5'-AUGCAUACAUCUGGAGUGA- 3' 

Explanation:

A frameshift mutation is a genetic mutation such that the triplet nature of gene expression by codons, the insertion or deletion occurs in such as way that it alters the complete sequence of 3 codon sets and can change the reading frame, resulting in a completely different translation from the original.

As it is pertinent to understanding that all genes are normally translated in sets of 3 codons, which typically describes and explain a unique amino acid sequence. Thus, if a frame shift mutation occurs, it can affect many amino acid sequences and finally the entire protein.  

If we look at option B:

wild-type 5-AUG   CAU  ACA  UUG  GAG  UGA-3  

mutant 5’-    AUG   CAU  ACA  UCU  GGA  GUG  A-3’  

An insertion of a base Uracil showed at the end of 3rd codon which affected and altered the whole sequence of codon triplets. This changed all next codons and finally all next amino acids will be altered.

8 0
3 years ago
What is the purpose of the uninoculated control tubes used in the oxidation fermentation test? why is it necessary to use two co
Vitek1552 [10]

<u>Answer</u>:

1. The purpose of the uninoculated control tubes used in the oxidation fermentation test is to serve as basis of the medium for the color comparison and that it is sterile.

2. It is necessary to use two controls in order to illustrate the no color change (green color) under both aerobic and anaerobic conditions.

3. The purpose of the experiment is to determine if the organisms utilize the carbohydrate and thus is fermentative. This will result in a color change from green to yellow.

Thus, the medium in one tube is sealed with a layer of paraffin to prevent diffusion of oxygen.  This tube will show that the medium is unaffected by the lack of oxygen.

The second tube will allow the diffusion of oxygen. This tube will show that the medium does not change color naturally in the presence of oxygen. Thus, the color changes will be caused only by the fermentation process of the organisms.

7 0
3 years ago
Imagine you are studying a population of plants and you have determined that they are all genetic clones of one another. You are
maksim [4K]

Answer:

The frequency of the allele is  high in  the  population

Explanation:

The selective pressure in this population is low light. <u>Thus only plants with high tolerance for low light will be able to survive in this population. LLT gene plant has this trait</u>.

Therefore the LLT gene plants  will have  higher rate of survival compare  to other clones at very low light intensity .

The frequency of expression of these gene will be high due to high survival rates in the population.

8 0
3 years ago
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