Biology, 14.05.2021 19:50 rhondafits9000
Crossing-over is a process that occurs during the formation of gametes. How does
crossing-over lead to genetic variation?
A. The number of mutations decreases.
B. The number of chromosomes increases.
C. The number of chromosomes decreases.
D. The number of combinations of alleles increases.
Answers: 1
Biology, 21.06.2019 18:30
Which table best shows the impacts resulting from human activity? impact of human activities human activity impact forest area cleared to construct an airport increase in oxygen level vegetation cleared to construct an oil mine increase in pollution impact of human activities human activity impact forest area cleared to construct an airport increase in sound pollution vegetation cleared to construct a power plant contamination of water impact of human activities human activity impact beehives cleared from urban areas increase in vegetation dams constructed on a river increase in fish population impact of human activities human activity impact beehives cleared from urban areas increase in bird population dams constructed on a river better quality of water
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Biology, 22.06.2019 02:30
Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .
Answers: 2
Biology, 22.06.2019 07:00
Common symptoms of an iron-defiency anemia include muscle weakness shortness of breath and lightheadedness why does iron deficiency causes these symptoms
Answers: 2
Crossing-over is a process that occurs during the formation of gametes. How does
crossing-over lead...
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