Answer:
Electrons are many thousand times smaller than the nucleus and negatively charged.
Explanation:
Electrons possess negligible mass and carry a negative charge.
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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.
No a rock is not that strong
Answer:
Viroids are molecules of RNA are not classified as viruses
Explanation:
because they lack a protein coat. They have characteristics that are common to several viruses and are often called subviral agents. Viroids are important pathogens of plants.
D) higher density than water