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riadik2000 [5.3K]
3 years ago
7

What human activity is most responsible for the damage to the ozone layer?

Biology
1 answer:
Citrus2011 [14]3 years ago
4 0
Polution from cars and factorys
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Jessica's mother takes her to see her pediatrician, who refers her to a rheumatologist, a doctor who specializes in rheumatic di
beks73 [17]

Answer:

Diarthroses are freely movable joints.

Explanation:

Rheumatology may be defined as the branch of medicine that mainly deals with therapy and diagnosis of the rheumatic disease. The individual specialized in this field is known as rheumatologist.

Diarthroses joint is also known as synovial joint and lined in continuous with the periosteum of the joined bones. The synovial fluid is filled in the synovial joint. The synovial joints provide the free movable joints that allow abduction, extension and adduction of the body parts.

Thus, the correct answer is option (d).

6 0
3 years ago
Imagine that a researcher is examining the positioning of synaptic clefts in a region of the nervous system of adult mice. In on
Setler [38]
This is likely a mutant mouse (as synaptic clefts are typically 10 to 20 nm wide). Given that neurotransmitters act over short distances, this mouse may demonstrate delayed responses to stimuli, or no responses at all.



That’s the answer
4 0
3 years ago
Suppose two independently assorting genes are involved in the pathway that determines fruit color in squash. These genes interac
makvit [3.9K]

Answer:

100% yellow fruit color, Yyww.

Explanation:

<u>Available data</u>:

  • two independently assorting genes
  • the W allele codes for a dominant white phenotype
  • w allele codes for a colored squash
  • The allele Y codes for a dominant yellow phenotype
  • the allele y codes for a recessive green phenotype
  • The phenotypes from the first locus will always mask the phenotype produced by the second locus if the dominant allele (W) is present at the first locus. This masking pattern is known as dominant epistasis

Epistasis means "interruption" and refers to interactions between genes located in different loci in the same chromosome. An “epistatic gene” can alter, influence, or suppress the expression of a "hypostatic gene". When the epistatic gene is dominant, the interaction is known as "dominant epistasis".

W suppresses the expression of Y and y, this means that whenever W is present, the fruit is white. If W <u>is not</u> present, the fruit color can be expressed.

So, the proposed cross in the present problem occurs between a green fruited individual and yellow fruited individual, which suggests that W is absent.

<em>Genotype for Green fruit: yyww</em>

<em>Genotype for purebred Yellow fruit: YYww</em>

Cross:

Parental) YYww    x    yyww

Gametes) Yw  Yw  Yw  Yw  yw  yw  yw  yw

Punnet square)    Yw       Yw       Yw      Yw

                 yw    Yyww  Yyww  Yyww  Yyww

                 yw    Yyww  Yyww  Yyww  Yyww

                 yw    Yyww  Yyww  Yyww  Yyww

                 yw    Yyww  Yyww  Yyww  Yyww

F1) 100% Yellow fruited plants, Yyww

As these two genes assort independently, we can also represent the cross for each gene by separate, like this:

For w gene:

Parental) ww  x  ww

Gametes) w w w w

Punnet square)  w     w

                 w     ww   ww

                 w      ww  ww

F1) 4/4 or 100% colored-fruits

For Y gene:

Parental) YY  x  yy

Gametes) Y Y y y

Punnet square)  Y     Y

                 y     Yy     Yy

                 y     Yy     Yy

F1) 4/4 or 100% yellow fruits, Yy.

3 0
3 years ago
Why do rice plants include starch and protein in their seeds
Wittaler [7]
A single gene could be inserted into a plant's genome, enabling specific traits to be expressed easily. Scientists have identified genes for two enzymes needed to make pro-vitamin A. One of these genes comes from corn.
6 0
3 years ago
Read 2 more answers
Which statement is true of P- waves ?
Alenkasestr [34]
It is B for the answer
7 0
3 years ago
Read 2 more answers
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