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