Answer:
D
Explanation:
This is a typical monohybrid cross involving a single gene coding for seed shape in a plant. The allele for round seeds (R) is dominant over the allele for oval seeds (r) i.e. the round shape will mask the expression of the oval shape in a heterozygous state (Rr).
Hence, in a cross between two heterozygous parents (Rr), alleles on chromosomes will randomly separate into gametes according to Mendel's law of segregation to produce gametes with R and r allele each. When these alleles from male and female parent combine, four offsprings with RR, Rr, Rr and rr genotypes will be produced.
RR, Rr and Rr genotypes will be phenotypically round-seeded while rr will be phenotypically oval-seeded. Therefore, 3/4 × 100 = 75% of the offsprings will be round-seeded.
Basaltic lava contain less silica than rhyolitic lava.
In fact, basaltic lava contain the least amount of silica among the three types of lava. It is also the least viscous so it moves the fastest. They are high in iron and magnesium.
The answer to your question is A.
The basic structure or a protozoa is a unicellular eukaryote that has a relatively complicated internal strucuture and are meant to carry out complex metabolic activities. Some protozoa also have structures for propulsion or other types of movements. and yes they can be seen under light microscope
Answer:
the central dogma of biology is: that all cells execute replication, transcription, and translation to maintain their genetic information and convert it in gene products. Now, coronavirus breaks it by not following the process on DNA and jumping to RNA:
Explanation:
There are two main reasons for this answer. The first one is that all genetic cells that want to preserve their genetic information to create genetic products. Follow a process in which they have to go through the three stages we have presented before and then they create genetic products or materials using RNA as a source. However, In coronavirus case, it doesn't follow them and jump to RNA directly without using DNA as a breach to create genetic products and find their genetic configuration on RNA instead of using it as a source of energy.