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