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