Choose the correct statement regarding estrous and menstrual cycles.
A. Ovulation only occurs in animals with a menstrual cycle.
B. Copulation can only occur during ovulation in the menstrual cycle.
C. Menstrual cycles are longer than estrous cycles.
D. The lining of the uterus is shed during menstruation and estrous.
E. Animals with estrous cycles are sexually receptive only when they are ovulating.
Answer: E
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Answer the following statements true (T) or false (F)
1. Studies by Avery, MacLeod, and McCarty with different strains of bacteria and those by Hershey and Chase with T2 bacteriophage determined that proteins are highly complex molecules that form the genetic material for bacteria and viruses. 2. A strand of DNA is composed of nucleotide bases, sulfate groups, and sugars. 3. When considering the complexity of genetic material, multiple genes are found within a chromosome. 4. If there is 28% adenine, then there must be 28% cytosine for the DNA composition of a particular organism. 5. DNA is a double helix structure whose strands are held together by hydrogen bonds with A to T and C to G base pairing.
Which one is not a function of the BRCA genes? a. Checkpoint proteins during mitosis and meiosis
b. Monitor the DNA strand. c. Maintain the integrity of the cell's chromosomes. d. All of these choices. e. Repair breaks in the DNA strand.
________ heat is more rapidly effective and efficient compared to ________ heat.
A. Moist; dry B. Moist; high C. High; moist D. Dry; moist E. High; dry
Transgender individuals
A. often seek sex change (gender reassignment) surgery. B. believe they are a sex different from what their body is. C. often dress and behave as a gender different from what their body is. D. All of the above are correct.