You may have heard through various media of an animal alleged to be the hybrid of a rabbit and a cat. Given that the cat (Felis domesticus) has a diploid chromosome number of 38 and a rabbit (Oryctolagus cuniculus) has a diploid chromosome number of 44,
what would be the expected chromosome number in the somatic tissues of this alleged hybrid?
A) 41 B) 38 C) 82 D) 40 E) 44
Answer: A
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Defects in cell signaling can lead to a cancerous cell due to:
A. overproduction of signals that trigger cell division. B. overproduction of a receptor that triggers cell division. C. a defective receptor that stays in the activated state and triggers cell division continuously. D. a defective signal-transduction protein that stays in the activated state and triggers cell division continuously. E. All of these choices are correct.
Explain how X inactivation can result in female mosaicism and give examples
What will be an ideal response?
What is considered to be the primary method of succession in the marine intertidal zone?
A. facilitation. B. submission. C. logistic growth. D. tolerance. E. inhibition.
Genetic exchange between 2 homologous chromosomes is called
A. pleiotropy. B. crossing over. C. synapsis. D. independent assortment. E. allelic exchange.