Organs are the level of the heartbeat
It’s B because these both lie in a few additional structures found in plant cells, these include Chloroplasts, the cell wall, and vacuoles
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.
Answer:
Good nutrition is important, because brain growth like the growth of the rest of the fetus' body is influenced by the quality of a pregnant woman's diet. Alcohol and cigarettes be avoided, because these can impair the formation and wiring of brain cells.On the other hand there is some information concerning the effects of environmental factors and their manipulation. During each prenatal stage, environmental factors affect the development of the fetus.
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