The arrangement of homeotic genes along chromosomes of vertebrate and invertebrate animals corresponds to the expression pattern of the genes along the anterior-posterior axis of the developing embryo.
<h3>What are homeotic genes?</h3>
- Homeotic genes are a group of body pattern forming genes which control the development along the anterior- posterior axis of the developing embryo.
- These encode transcription factors which control and specify the genes involved in body patterning. These provide identity to the segments during embryo formation.
- Genes located in the 5’ end act on posterior side whereas the genes on 3’ end act on anterior region.
- Homeotic genes are evolutionary conserved and control body specification, patterning and differentiation.
- The loss of function of any of the gene changes the body pattern and affects the development.
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These organisms didn't fit into the classification system of the time. The system had to be changed to incorporate this new group or organisms. ... Changes to the classification system have meant that the classification of some species of organisms has changed too...
Answer:
1. Sewage
2. diarrhea
3. atmosphere
4. 100 gallons of water
5. agricultural pollution
6. water cycle
7. water
Explanation:
Answer: D
Explanation: It would be D because it has a larger amount and all species vary and leaves can be exactly the same they change color and evolve into different shapes
The answer is 0.43
To calculate p we will use one of two formulas of the Hardy-Weinberg principle:
p² + 2pq + q² = 1 and p
+ q = 1
where:
p - the frequency of the allele for long legs which is a dominant trait.
q - the frequency of the allele for short legs which is a recessive trait.
p² - the frequency of dominant homozygote (with long legs)
2pq - the frequency of heterozygote (with long legs)
q² - the frequency of recessive homozygote (with short legs)
So, 33 of 100 organisms have short legs. The frequency of recessive homozygote is represented by q²:
q² = 33/100 = 0.33
⇒ q = √0.33 = 0.57
Using the formula:
p + q = 1
p = 1 - q = 1 - 0.57 = 0.43
Therefore, p = 0.43