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