A) differentiation B) immunity C) evolution D) heredity
A) availability of starch molecules B) nutritional habits of the organism C) environment of the organism D) type and order of amino acids
A) cloning B) selective breeding C) differentiation D) gene insertion
A) coiled strands of genetic material B) reproductive cells composed of molecular bases C) large molecules that have only one function D) folded chains of bonded glucose molecules
A) asexual reproduction B) habitat modification C) genetic engineering D) natural selection
A) The gene for insulin is replicated in vacuoles, while the gene for testosterone is replicated in mitochondria B) The gene for insulin is turned ON in liver cells, but the gene for testosterone is not C) The gene for insulin is a sequence of five different molecular bases while the gene for testosterone is a sequence of only four differentmolecular bases. D) The gene for insulin has a different sequence of molecular bases than the gene for testosterone.
A) only the DNA in certain cells will replicate B) DNA is functional in only 10% of the cells of the body C) some of the DNA in some of the cells will be removed by chemical reactions D) different groups of cells containing the DNA may be exposed to different environmental conditions, for example, more food for one but not the other
A) meiosis → fertilization → mitosis B) mitosis → fertilization → meiosis C) fertilization → meiosis → mitosis D) fertilization → mitosis → meiosis
A) meiotic cell division B) zygote formation C) mitotic cell division D) recombination
A) overproduction of offspring and competition B) the need to adapt and maintain homeostasis C) sorting and recombining of genes in meiosis D) replication and cloning
A) mated only with panthers from Texas B) solved the reproductive problems of the species by asexual methods C) produced more reproductive cells than the male panthers in Texas D) increased the genetic variability of the panther population in Florida
A) an adaptation that will be passed on to other types of cells in the body B) increased variation in the type of organelles present in the cell C) a mutation that will affect the synthesis of a certain protein in the cell but not the offspring D) rapid evolution of the organism in which the cell is found
A) mitosis to produce a larger population B) internal fertilization to produce an embryo C) meiosis to produce gametes D) fusion of eggs and sperm to produce zygotes
A) a majority of oranges with seeds and only a few oranges without seeds B) oranges and other kinds of fruit C) oranges with seeds, only D) oranges without seeds, only
A) It is affected primarily by the eating habits and general health of the mother. B) It is not affected by conditions outside the embryo. C) It is affected primarily by the eating habits and general health of the father. D) It will not be affected by any medication taken by the mother
A) Offspring have a combination of genes from both parents. B) As an embryo develops, various tissues and organs are produced. C) Replicated chromosomes separate during gamete formation. D) The cells produced by a zygote usually have different genes.
A) a cancer that mutates and becomes elegant and beautiful B) the strange effects mannequins can have on people C) a dog named Samantha and how she helps her owner overcome obstacles D) a virus aimed to cure cancer that mutates and causes humans to become monster-like
A) usually lead to the death of the organism B) are usually beneficial to the organism C) cannot be passed on to offspring D) lead to more serious mutations in offspring
A) Each cell has pairs of chromosomes and the cells are usually genetically identical. B) Each cell has pairs of chromosomes and the cells are usually genetically different. C) Each cell has half the normal number of chromosomes and the cells are usually genetically different. D) Each cell has half the normal number of chromosomes and the cells are usually genetically identical.
A) synthesize the same proteins and enzymes as the entire colony is cloned from the original B) have a resistance to different antibiotics C) replicate different numbers of genes D) express adaptations unlike (different than) those of the other cells
A) make carrying a fetus impossible B) decrease her ability to provide essential nutrients to an embryo C) make fertilization impossible D) affect the production of eggs
A) ovary B) placenta C) progesterone D) estrogen
A) carry progesterone and fool the mother's body into thinking it is already pregnant B) are easily digestable C) provide plenty of testosterone for her well-being D) are made up of nutrient-rich sugars
A) causing mutations in the bacteria B) engulfing (devouring) and digesting the bacteria whole C) inserting part of their DNA into the bacterial cells D) producing toxins that compete with bacterial toxins
A) provides immediate immunity to other diseases B) it takes a very long time to begin injecting its viral RNA code into the hosts' cells C) hijacks cells into making more viruses leaving the host defenseless to disease D) automatically causes AIDS |