Reef-building corals enter into a mutually beneficial relationship with photosynthetic protists called ________ as a means of obtaining food
Fill in the blank(s) with correct word
dinoflagellates
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What is the name of the birth defect in which the neural tube fails to close completely?
a. neurulation b. fossa ovalis c. organogenesis d. spina bifida e. capacitation
In pea plants, the gene for round seeds (R) is dominant, and wrinkled seeds (r) is recessive. The endosperm of the pea is also either starchy, a dominant gene (S), or waxy (s). What can be said of a fully heterozygous, dihybrid cross?
A. Some offspring could be homozygous for both dominant genes. B. Some offspring could be homozygous for one dominant gene such as round seed and homozygous recessive for the other recessive waxy gene. C. Some offspring could be homozygous for both recessive genes. D. All of these choices are impossible combinations in a dihybrid cross. E. All of these choices are possible combinations in a dihybrid cross.
If an ecosystem has a carrying capacity of 1,000 individuals for a given species and 2,000 individuals of that species are present, we can predict that the population
A) size will remain at equilibrium. B) size will decrease. C) will show a clumped dispersion pattern. D) size will slowly increase.
Genetic anticipation is best described as ________
A) trinucleotide repeats increase in future generations B) trinucleotide repeats form fragile sites C) cells stop during the cell cycle to check for DNA damage or acentric fragments D) the G2 gap before meiosis E) the phenomenon by which synapsis is delayed due to translocation cross formation