In my opinion, chloroplasts and mitochondria can't live outside the cell now because mitochondria ensure the energy for the cell and the chloroplasts is important for photosynthesis. Just my opinion.
Answer:
The correct answer would be C) It increases survival for cuckoos, but decreases survival of the other birds.
The host chicks often face lots of competition from the cuckoo chicks in terms of food as well as space. It makes it difficult for the host chicks to survive.
It has also been found that cuckoo chicks beg to be fed more intensely due to which host chick die due to starvation.
In addition, in some species of cuckoo, cuckoo chicks remove host eggs from the nest within few days of hatching.
Answer:
- Frequency of light colored mice caught on dark-colored substrate =
- Allele frequency = 0.013
- Genotypic frequency = 0.000169
- Frequency of dark colored mice caught on dark-colored substrate =
- Allele frequency = 0.24
- Genotypic frequency = 0.0576
Genotypic frequency of Dd = 0.00624
Explanation:
<em>Frequency = no. of mice of one color / total no. of mice</em>
- Light colored mice frequency on dark substrate = 3/225
= 0.013 (d)
- Dark colored mice frequency on dark substrate = (7+5+42)/225
= 54/225
= 0.24 (D)
These are allele frequencies.
Genotypic frequency = p²+q²+2pq
where, p= homozygous dominant q= homozygous recessive and pq= heterozygous
Genotypic frequency of dd = q²
= (0.013)²
= 0.000169
Genotypic frequency of DD = p²
= (0.24)²
= 0.0576
Genotypic frequency of Dd = 2pq
= 2 × 0.24 × 0.013
= 0.00624
Early in development, the nervous system begins as a tube surrounding a
fluid-filled cavity.
The tube which surrounds the fluid-filled cavity is referred to as neural tube.
The tube gives rise to the central and peripheral nervous system as
development occurs.
The inner part of the tube thickens to form the central nervous system
which consists of the brain and spinal cord while the outer region forms
the peripheral nervous system.
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If the original strand is TACGGTACCGGA, the complementary strains is ATGCCATGGCCT