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