Across
- once a zygote begins to divide it is called an ___
- a female gamete is called an __
- stage of mitosis in which chromosomes first become visible
- a cell that contains only one of each homologous chromosome (ie half the number of chromosomes of a "normal" cell) are said to be ___
- a reproductive cell which is haploid is called a ____
- a substance which can cause a mutation is called a ____
- a structure in which materials from the mother and the embryo diffuse from one to the other is called the ___
- all types of reproduction in which the offspring are genetically identical to the parent
- chromosomes _______ or replicate during the late stage of interphase
- plants that send out runners or rhizomes are reproducing by a method called ____ reproduction (asexual is not the answer here)
- a tumor which has stopped growing and will not spread throughout the body is said to be ___
- a male gamete is called a ___
- penicillium reproduces by producing and spreading ____, which under the right conditions can grow into a new organism
- the type of asexual reproduction used by yeast cells
- phase of mitosis in which the paired chromatids are pulled apart by spindle fibres
- a harmful substance that can pass from the mother to the developing fetus and cause a condition in the fetus called FAS
- the last stage of mitosis when new nuclear membranes start to form around the daughter nuclei. The cell has not completely divided yet.
- at about 8 weeks after fertilization, a human embryo becomes what is called a ___
- _____ light is a known mutagen
- the part of the cell cycle in which growth takes place.
- a human gamete contains _____ three chromosomes
- a tumor which continues to grow and can spread cancer cells throughout the body is said to be ___
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Down
- cells that contain pairs of homologous chromosomes are said to be ____
- uncontrolled cell division can lead to a "lump" or "growth" which is called a ____
- the process in which a broken piece of an organism grows into a whole new organism
- a bacterium divides into two new bacteria in a process called binary ____
- the ____ cord supplies nutrients and oxygen to the developing fetus
- the process which produces gametes from normal cells is __
- stage of mitosis when paired chromatids line up along the equator of the cell
- a substance which can cause or promote cancer is called a ____
- a process in which the cytoplasm of a cell divides into two roughly equal halves
- animals that live in water usually reproduce using ___ fertilization
- a normal human body cell contains ____ six chromosomes
- a general term for the type of reproduction which requires two parents is ___ reproduction
- a single cell produced by fertilization is called a ___
- during mitosis in animal cells, paired chromatids are pulled apart by ____ fibres
- materials pass from the mother to the embryo through a membrane by the process of ___
- organisms which can produce both sperm and ova are called __
- chromosomes that are made up of the same kinds of genes and come in pairs are said to be ____
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