Crossing over does not prevent homologous chromosomes from separating during meiosis, hence, the statement is false.
CROSSING OVER:
- Crossing over is the process whereby non-sister chromatids of homologous chromosomes exchange their genetic materials.
- Crossing over occurs specifically during the prophase I stage of meiosis I. Via this process, genetic diversity is likely to occur in the daughter cells.
- Crossing over only assures that genes of homologous chromosomes are recombined, it does not stop them from separating in the Anaphase stage.
- Therefore, crossing over does not prevent homologous chromosomes from separating during meiosis, hence, the statement is false.
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Autosomal dominant condition occurs when alleles of genes present on chromosomes in the autosomes (somatic) mask the effect of the other allele.
They can produce a light brown kid and the chances of producing this is 50%.
- Light brown color is dominant to black. A light brown male is mated to a black female, producing a black kid.
- For the two to produce a black kid which is in the recessive condition, the male has to be heterozygous for the condition (Bb).
Let light brown be (BB or Bb) and black be (bb)
Parents : B b x b b
Offspring genotype: Bb bb
Ratio: 1 : 1 (50%)
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Answer:
<em>Open </em><em>circulatory </em><em>system</em><em> </em><em>is </em><em>the </em><em>system </em><em>that</em><em> </em><em>is </em><em>primarily</em><em> </em><em>found </em><em>in </em><em>invertebrates.</em>
Answer:
the hot tea has more thermal energy and higher temperatures
