Biology
4th Edition
ISBN: 9781259188121
Author: Peter Stiling, Robert Brooker, Linda Graham, Eric Widmaier
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 51, Problem 2TY
Which is considered an advantage of sexual reproduction?
- a. necessity to locate a mate
- b. increased energy expenditure in producing gametes that may not be used in reproduction
- c. increased
genetic variation - d. decreased genetic variation
- e. both a and b
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Is this true or false?
a. Fertilization is followed by a cleavage, a period of rapid cell division without growth.
b. From the process above, this results in the production of a large number of cells called blastomeres.
c. In sexual reproduction, the offspring have the same combinations of genes as their parents.
d. Sequential hermaphroditism occurs when an animal is one sex during one phase of its lifecycle and the opposite sex during another phase
What makes sexually reproduced offspring genetically different from their parents?
a.
Genetic recombination during mitosis
b.
Genetic recombination during meiosis
c.
Sexual reproduction does not produce genetically different offspring
d.
Crossing over during mitosis
What is a likely evolutionary advantage of sexual reproduction over asexual reproduction? a. sexual reproduction involves fewer steps b. less chance of using up the resources in a given environment c. sexual reproduction results in greater variation in the offspring d. sexual reproduction is more cost-effective
Chapter 51 Solutions
Biology
Ch. 51.1 - CoreSKILL How did Paland and Lynch test the...Ch. 51.1 - CoreSKILL Approximately how many times more often...Ch. 51.1 - Prob. 3EQCh. 51.2 - Prob. 1CCCh. 51.3 - Prob. 1CCCh. 51.4 - Prob. 1BCCh. 51.4 - Prob. 1CCCh. 51 - Prob. 1TYCh. 51 - Which is considered an advantage of sexual...Ch. 51 - Prob. 3TY
Ch. 51 - Prob. 4TYCh. 51 - Prob. 5TYCh. 51 - Prob. 6TYCh. 51 - A major function of FSH is to a. stimulate the...Ch. 51 - During the human ovarian cycle, ovulation is...Ch. 51 - Prob. 9TYCh. 51 - Prob. 10TYCh. 51 - Prob. 1CQCh. 51 - Prob. 2CQCh. 51 - Prob. 3CQCh. 51 - Define asexual reproduction and give three...Ch. 51 - Describe the events of the ovarian and uterine...
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- How does the production of sperm differ from the production of eggs? a. Sperm production involves meiosis, whereas egg production involves only mitosis. b. Meiosis during sperm production produces four sperm cells, whereas meiosis during egg production produces only one functional egg cell. c. Sperm are haploid, whereas eggs are diploid. d. Sperm production begins during fetal development, whereas the meiotic process that begins egg production doesn’t begin until pubertyarrow_forwardWhich process is necessary to prevent the doubling of genome size during sexual reproduction? a. meiosis b. mitosis c. apoptosis d. metastasis e. contact inhibitionarrow_forwardThis structure is the site of fertilization? a.E b.C c.A dD e.Barrow_forward
- If meiosis produce haploid cells, how is the diploid numberrestored for those organisms that spend most of their life cycle in the diploid state? a. DNA replication b. reverse transcription c. synapsis d. fertilizationarrow_forwardThe process forming the neural tube and plate via the intercalation of cells along the medial-lateral axis and extension along the anterior-posterior axis occurs is called? a. neurulation b. embryogenesis c. convergent extension d. morphogenesisarrow_forwardWhat is a sex-linked gene? A. A gene that influences sexual behavior B. A gene that has greater effects on one sex than the other C. A gene on either the X or Y chromosome D. A gene that becomes activated during sexual behaviorarrow_forward
- What is a likely evolutionary advantage of sexual reproduction over asexual reproduction? a. Sexual reproduction involves fewer steps. b. There is a lower chance of using up the resources in a given environment. c. Sexual reproduction results in variation in the offspring. d. Sexual reproduction is more cost-effective.arrow_forwardWhich form of reproduction can result from damage to the original animal? a. asexual b. fragmentation c. budding d. parthenogenesisarrow_forwardWhich mechanism prevents an ovum from being fertilized by multiple sperm cells? A. Once a sperm penetrates the jelly-like coating of the egg, no other sperm cell can penetrate the coating. B. When a sperm fuses with the plasma membrane of the egg, depolarization of the membrane occurs. C. The egg can survive in the Fallopian tube for 24 hours s it does not have mitochondria to produce energy. D. When more than a single sperm cell fuses with the plasma membrane, multiple zygotes can form, leading to the twin or triplets.arrow_forward
- The gametes in the image below could have formed from which parent? A. Male B. Female C. Male or female D. Neither male nor femalearrow_forwardWhich correctly describes a genetic trait that is sex-linked in humans? A. The trait appears only in males or only in females, but not in both. В. The gene is always carried on the Y chromosome. C. The trait is expressed only during the act of reproduction. D. The trait is carried on the X or Y chromosome. 3.arrow_forwardLabour is controlled by the nervous and endocrine systems through a positive feedback system.In which example have we encountered another positive feedback system in Biology 30? a. Reflex loop in the PNS b. FSH levels during sperm production c. Progesterone during menstruation d. Prolactin during lactationarrow_forward
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