Pseudopodia in amoeba is a specific structure in a single-celled organism.
Multiple of those contaminated show no signs at all—the amoeba lives calmly in their gut, providing on bacteria without causing trouble.
But in others, the parasite attacks the gut itself and can cause potentially fatal diarrhoea, intestinal ulcers, and liver spots.
Thus, Pseudopodia in amoeba is the answer.
To learn more about amoeba click here;
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B.More organisms reproduce this way.
C.Offspring grow in different environments.
D. Offspring come from identical parents.
Answer:
A. Traits from two parents are combined
Explanation:
Each time you have a sexual reproduction the offspring get a mixture of both the parents genes, making the offspring's genes unique. However since the asexual reproduction would produce an offspring with an identical genes to one parent, the genes are the same.
In other word the asexual reproduction does not have any diversity, and the sexual reproduction does because it is a mixture of two parents genes.
The addition of another person at each end of the rope does not affect the results of the tug of war.
The addition of another man at each end of the rope does not affect the results of the tug of war because the forces exerted by each individual are independent of each other.
In a tug of war, the force applied by each person depends on their individual strength and the technique used to pull the rope.
The total force exerted on the rope is the sum of the individual forces, and it remains the same regardless of the number of people at each end.
Genes are the hereditary units, which carry information from the parent to offspring. The variant form of the gene, an allele codes for different traits, but is present at the same locus of the chromosome.
Given that:
The phenotypes of crawfish are long, medium, and short.
Parents have medium antennae.
The progeny have long and short antennae.
Let us assume the genotype as:
Let allele A be dominant that codes for long antennae.
Allele a is recessive and codes for short antennae.
The expression of three phenotypes suggests that the alleles are inherited through incomplete dominance.
Incomplete dominance is the phenomenon in which both the alleles will be expressed incompletely. The alleles for long and short will not be expressed properly, leading to medium-length antennae.
The expression can be given as:
AA - Long antennae
Aa - Medium Length antennae
aa - Short Length antennae
The cross for the given alleles is given in the attachment below.
Thus, F1 progeny will have 25 % purebred dominant for long antennae, 50% of the progeny will have heterozygous medium antennae, and 25% of the progeny will have purebred recessive short antennae.
To know more about the cross, refer to the following link:
Offspring trait variations, such as antennae length in crawfish, are a result of genetic recombination during sexual reproduction. Each parent contributes a set of chromosomes that contain genes for these traits.
The traits of offspring, like antennae length in crawfish, are determined by their parents' genes, which carry information for various physical characteristics. We see this in the diversity of freshwater crustaceans such as crawfish, where children may inherit different traits like short or long antennae.
Each parent crawfish contributes one set of chromosomes, which include genes for traits like antennae length. The actual trait an offspring exhibits, such as short or long antennae, depends on the combination of the alleles (versions of the gene) it receives from its parents. This is an example of Mendelian genetics and shows that although the parents may both have medium-length antennae, they carry alleles for other antenna lengths which can appear in their offspring.
For the offspring to have short or long antennae, one parent must have contributed the 'short' allele and the other the 'long' allele while both also carry the 'medium' allele. The combination of these alleles results in offspring with different antennae length traits due to the process known as genetic recombination during sexual reproduction.
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