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Monospermy and Physiological Polyspermy. In general, the entry of more than two spermatozoa into the egg cytoplasm, referred to as polyspermy, causes aberrant effects on meiosis completion or embryo development and hence embryonic death, due mainly to excess male centrosomes delivered into the egg.
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Explanation: Could you have drawn something different in question 3d? Explain. ... yes if both parents are heterozygous. 14 Chance no dimples. 1/4 dd 1/4 no ... If a woman is heterozygous for dimples and has 5 fingers, and a male is ... a Punnett square and calculate genotype and phenotype frequencies to explain your answer.
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The spore-containing sori of a fern are found on the underside of their fronds, which means that they are located on the underside of the fern leaves.
A sorus (plural - sori) refers to a group of sporangia (which include spores) when it comes to ferns and fungi. So, when it comes to ferns, they are colored yellow or brown, and located on the underside of the frond - and a frond is a large leaf.
Answer:La principal diferencia entre las células haploides y las células diploides es que las células diploides tienen dos conjuntos completos de cromosomas, mientras que las células haploides solo tienen un conjunto completo de cromosomas. ... En la meiosis, las células diploides se dividen para producir células germinales haploides.
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Animals have so many different enzymes to digest their food they eat variety of food in their diet so specif enzymes are needed to digest each type of food